Answer: Disaffirm the Contract.
Step-by-step explanation:
John’s Mother can disaffirm the contract on the grounds that John is a minor.
Disaffirmance is known as the right for one party to renounce a contract. The person must indicate reasons why he or she will not be bound by the terms outlined in the agreement expressly or implicitly. Because John is 15 years of age which makes him a minor this means he can dissafirm the contract.