Answer is D is correct. An agreement enforceable by law is a contract. According to section 2 (h) of the Indian Contract Act, “an agreement enforceable by law is a contract”. That is all agreements are not contract. An agreement, in order to become a contract must satisfy certain conditions which are the essential elements of a contract. Mutual free consent is an essential element of an agreement. Insane can’t give free consent. As per Section 10 and Section 25 of the Indian Contract Act, 1872, consideration is essential in a valid contract. Therefore, option (d) is the correct answer.

Answer is B is correct. Transportation is not a punishment prescribed under Section 53 of Indian Penal Code; it was substituted by imprisonment for life in 1955. Therefore option (b) is the correct answer.

Answer is C is correct. Equal Remuneration Act, 1976 prevents discrimination on the ground of sex. Therefore option (c) is the correct answer.

Answer is B is correct. The first instance of doctrine of privity of contract was seen in the case Jordan v. Jordon (1594), but was only solidified in the case of Tweedle v. Atkinson (1861). Therefore, option (b) is the correct answer.

Answer is C is correct. D.P.P. v. Beard is a landmark case on intoxication. In this case, the defendant, Arthur Beard, raped and killed 12-year-old Ivy Wood in Hyde, Cheshire. While raping her, Beard covered her mouth with his hand to stop her from screaming. In doing so, he pressed his thumb on her throat, and she died of suffocation. Therefore option (c) is the correct answer.