Let's find out the meaning of following words:- 

guilty of - accused of a crime. 

expedient - an action that suitable or appropriate.

adverse - preventing success or development; harmful; unfavourable.

deterrent - a thing that discourages or is intended to discourage someone from doing something.

A person is guilty of a crime not the punishment. Hence, option 5 is eliminated. Since, "adverse" is an adjective which should be followed by noun "effect", but verb "affect" is given. Hence, B is eliminated. Now, looking at the context, it describes that death penalty is not suitable or it will not discourage the criminals to commit any crime in future. So, both A & C are correct. Thus, option 4 is the correct answer.

Let's find out the meaning of following words:- 

Bustle around - to be in hurry

dawdle away - to delay in; procrastinate.

impeding - creating hinderance

Word 'delay' takes preposition in afterwards. Hence, B is eliminated.

Clearly, if the investigation is quick. So, it won't allow criminals to destroy the evidence. Thus, option 5 gives opposite meaning to the context. Thus, option 5 is eliminated. Now, verb "delay" takes preposition in with it. Hence, B is eliminated. Thus, option 2 i.e. both A & C is the correct answer.

The phrase ‘play hard to get’ means ‘deliberately adopt an aloof or uninterested attitude, typically in order to make oneself more attractive or interesting.’ The word ‘playing’ is in the wrong tense and hence the sentence has to be improved.

The rest of the sentence is in present tense, hence the verb should also be in present tense. Only choice A is correct for the sentence.

Choices B and C are wrong as the tense is wrong.

Hence the correct answer is option 1.

When two clauses are joined with a conjunction and, then it's understood that the tense in the next clause will remain the same. Hence, no need to use same helping verb again and again. Thus, remove will from the B part. So, option 2 is the correct answer.

Therefore the correct sentence is:

Iran will more directly intervene in Iraq and render the possibility of progress in the non-existent peace efforts in Afghanistan with even more difficulty.

The B part of the sentence already has a noun "capacity", so using another noun "adequacy" before it makes it grammatically incorrect. Hence, replace adequacy with adjective adequate. Thus, option 2 is the correct answer.

Therefore the correct sentence is:

On the ground, strong public infrastructure and adequate capacity among administrators and personnel to handle rescue and rehabilitation must be ensured. 

Since, "threat" is an emotion. Now, there is a difference between perception and perceptive. "Perception" means awareness of something through the senses. Whereas, "perceptive" means having or showing sensitive insight. Definitely, there were awareness of threats to India. Hence, perception is more suitable. Thus, option 3 is the correct answer. 

Therefore, the correct sentence is:

The talks between U.S. & India were the most comprehensive dialogues India had with U.S. on its nuclear policy including the threat perception and future plans for security. 

There is no error in above given sentence. All the elements of English grammar have been used correctly.

Let us first understand the meaning of the words:

Abetting means a help or aid.

Abating means becoming less intense.

Receding means slowing down or lessening in quantity. Reticent means quiet and secretive.

The context of the sentence suggests that the blank must contain a verb that means to stop or slow down.

The only apt options here that can make the sentence meaningful are B and C.

Therefore, the correct answer is option 3.

Let us first understand the meaning of the words:

To relish is to enjoy something.

To relinquish is to give up or let go of something.

A respite is a halt or pause in activity.

To cease is to stop something.

The context of the sentence suggests that the blank must contain a verb to be used with the preposition 'to', which makes it a 'to-infinitive'. Respite, being a noun, cannot be used here.

The only apt options here that can make the sentence meaningful are relinquish and cease, as 'injury' and 'forced' are mentioned, which means 'relish' cannot be used here. So, only B and D are apt.

Therefore, the correct answer is option 1.

Let us first understand the meaning of the words:

Dismay and chagrin both mean displeasure.

To disturb is to upset. Merry means pleasant.

To the dismay of or to the chagrin of someone is a phrase that means something occurring which displeases that person.

e.g. He came back to claim his money, much to my chagrin.

The context of the sentence suggests that the blank must contain a noun, corresponding to 'work in his yard'.

The only apt options here that can make the sentence meaningful are A and B.

Therefore, the correct answer is option 2.