Xavier Aptitude Test 2015 Paper

(c) (i) Implied, (ii) faked, (iii) separation, (iv) demeanour, (v) proscribed;
Proscribed means forbid, especially by law and is opposite of prescribed. As the passage says, 'despite repeated requests from the counsel for prosecution' it means that the counsel wanted the lie detector test to ascertain the truth but the court proscribed. So (a) and (d) are wrong.
Deportment means a person's behavior or manners; demeanour is the outward behavior or bearing; So they mean the same and can be used alternately.
Infer means to deduce or conclude (information) from evidence and reasoning rather than from explicit statements; whereas imply strongly suggest the truth or existence of (something not expressly stated); In the given passage 'implied' makes more sense as the usage of 'however' suggest that there was an indication that the accused was behaving in that manner and for its confirmation the lie detector test must have been conducted.