Which of the following is NOT a method for terminating an offer?

The correct answer is acceptance, as it does not constitute a method for terminating an offer. Instead, acceptance is the process by which the offeree indicates agreement to the terms of the offer, thus resulting in the formation of a contract.

When an offer is accepted, it signifies that the offeree is ready to enter into a binding agreement, and therefore the original offer remains valid and transforms into a contract, rather than terminating it. This is a fundamental concept in contract law, emphasizing that acceptance is the completion of the offer rather than a termination of it.

Other methods such as rejection, counter-offer, and revocation all serve to end the original offer. Rejection involves the offeree straightforwardly declining the offer, while a counter-offer effectively negates the original offer by proposing new terms. Revocation occurs when the offeror withdraws the offer before it is accepted. Each of these methods results in the termination of the offer rather than solidifying an agreement.