Solutions
Antiquated = out dated, old-fashioned, ancient, obsolete.
Renewed = Restarted, recommenced, revived, revitalized.
Unique = distinctive, individual, special.
Modern = contemporary, present time.
Renovated = Modernize, restore, refurbish.
Altered = changed in character or composition, typically in a comparatively small but significant way.
Hence, option C is the correct answer.