Jeff who lives next door to Saleem went to Saleem's house proposing to sell his car for $15,000 to be accepted by 5 September 2020. On 3 September 2020, Jeff sold the car to Matt and sent a letter to Saleem revoking his proposal. The letter reached Saleem on 10 September 2020. On 6 September 2020, Saleem telephoned Jeff accepting the proposal. Jeff informed Saleem that he has already sold his car. Advise Saleem: (i) Whether Jeff can revoke his proposal before 5 September 2020? If the answer is yes, discuss under what circumstances Jeff would not be able to sell his car before 5 September 2020.(10 marks) (ii) The effect of Jeff's letter of revocation and (5marks) (iii) Was there any valid contract when Saleem accepted the proposal. (5 marks) The answer should be addressing the issue, law, application and conclusion