Which of the following methods can be used to terminate a contract?

The correct choice identifies the various legally recognized methods for terminating a contract, which include mutual agreement, breach, impossibility of performance, or expiration.

Mutual agreement occurs when both parties agree to end the contract before its completion, which is a standard practice that ensures both sides are in consensus. Breach refers to a situation where one party fails to fulfill their contractual obligations, allowing the other party to terminate the contract. Impossibility of performance applies when unforeseen events render it impossible for one or both parties to fulfill their contractual duties, effectively terminating the agreement. Finally, expiration happens when the term of the contract naturally concludes at a pre-specified end date.

This choice encapsulates the fundamental principles of contract law regarding termination, highlighting that certain conditions or mutual consent can dissolve the contract's obligations, leading to a clean termination of the relationship between the parties involved. The other methods listed do not universally meet the legal standards required for termination in a contractual context.