(a) Under the provisions of the Contract Act, 1872 'Every person is competent to contract who is of the age of majority according to the law to which he is subject, and who is of sound mind, and is not disqualified from contracting by any law to which he is subject'. Describe the circumstances in which a person may not be able to enter into a contract, despite meeting the above conditions ? (b) Jamal threatened Rafia to murder her son Atif if she did not sell her house to Mujahid. Rafia did as she was told Under the provisions of the Contract Act, 1872 comment on the validity of the above contract ? (c) If Rafia has received some advance is she bound to return