Final answer:
At common law, an infant could avoid a contract at his option, if not for a necessity. This means that an infant, who is a person under the legal age of adulthood, has the right to refuse or cancel a contract without any consequences if there is no necessity for the contract.
Step-by-step explanation:
At common law, an infant could avoid a contract at his option, if not for a necessity. This means that an infant, who is a person under the legal age of adulthood, has the right to refuse or cancel a contract without any consequences if there is no necessity for the contract. Necessity refers to situations where the contract is essential for the well-being or survival of the infant.