Under the swing set arrangement, did the woodworker's delivery within two weeks create a binding contract given the father's request to deliver within one week?

• A. Yes, because delivery within the original two-week period satisfied the contract.
• B. No, because the one-week deadline modified terms unilaterally.
• C. Yes, because the woodworker accepted the father's request by starting work.
• D. No, because there was no written agreement.

Answer: (A)

The key idea is that a contract modification requires mutual assent and new consideration to be binding. If the father asked to deliver in one week, that would be a proposed change to the terms. But without the woodworker's explicit agreement to modify the contract (and without new consideration or a written modification), the original two-week delivery deadline governs. Delivering within that original two-week period satisfies the contract as it stood, so no new, binding one-week deadline was created. Merely starting work in response to the request does not by itself bind the parties to a modified term; there must be a true, supported modification. Therefore, the woodworker’s delivery within two weeks meets the initial contract, and no new contract was formed by the one-week request.