Q.
(a) Explain what are the essential elements of a contract
(b) Abu offered to sell his house to Biden by letter. Biden accepted the offer by posting a registration letter to Abu on 23.07.2022. On 25.07.2022, Abu contacted Biden informing him that his house is no longer for sale and that he wished to revoke the offer. Advice Biden as to whether there is a valid contract or not.
(20 marks, 2022 Q3)