Answer:
It is too late for him to dis-affirmed the contract.
Step-by-step explanation:
Contract is the legal binding agreement document between two parties for them to obey any given conditions specified in the document. In the case of Bob, despite the fact that he was a minor, his signature on the BMW contract shows that it is binding between ABC Motors and him.
The motor company might not be aware of his legal age which shows he is a minor before entering the agreement with him. It is expected that, he should honor his contract to the latter.