Final answer:
Barrett, as a minor, has the right to either disaffirm the contract before reaching adulthood or ratify the contract at any time during his minority or shortly after becoming of age. Elizabeth, as an adult, cannot disaffirm the contract based on Barrett's age.
Step-by-step explanation:
The correct answer to the question is that Barrett may ratify the contract at any time during his minority. In legal terms, a minor is typically not considered competent to enter into binding contracts; however, there are exceptions where a contract with a minor can be valid. It's important to note that Barrett, the minor, has the right to disaffirm the contract before reaching the age of majority or shortly after becoming an adult. Elizabeth, being an adult, does not have the right to disaffirm the contract solely based on Barrett's age. Once Barrett comes of age, he may choose to ratify or reject the contract fully. Ratification would make the previously voidable contract fully binding. If Barrett chooses not to ratify the contract upon reaching adulthood, the contract is considered voidable at Barrett's option.