Which of the following is a remedy for breach of contract?

Specific performance is a remedy for breach of contract that requires the breaching party to fulfill their obligations as specified in the contract. This remedy is typically issued in cases where monetary damages would not be sufficient to compensate the non-breaching party for their loss. For example, in contracts involving unique items, such as real estate or rare collectibles, it may be impossible to find a substitute. Therefore, the court may order the breaching party to complete the contract as originally agreed upon.

Negotiation for better terms, refusal to contract, and assignment of duties do not serve as remedies for breach of contract. While negotiation can be a useful strategy in many contexts, it does not provide a legal solution to a breach that has already occurred. Refusal to contract typically applies before a contract is made and does not address breaches. Assignment of duties refers to transferring obligations to a third party and does not solve the issue of a breach itself. Thus, specific performance stands out as the appropriate remedy in situations where fulfilling the original terms is crucial.