Select the most correct statement.
a) When two parties have entered into a written contract and they subsequently orally agree to alter the terms of the written contract, the oral agreement will be admissible in evidence.
b) When two parties, during the negotiations leading to a written contract, orally agree that the contract shall not be binding on either party unless a specified events happens. The oral agreement will be inadmissible in evidence because of the statute of frauds
c) If a party wished to prove that he had been induced to enter into a contract by reason of fraudulent representations orally made, this evidence would be inadmissible in evidence.