What situation could lead to a contract being deemed breached?

A contract is deemed breached when one party fails to fulfill their obligations as specified in the agreement, which is precisely what is indicated by the failure to perform conditions. This encompasses any scenario where a party does not deliver goods, provide services, or meet deadlines as stipulated in the contract. The breach can vary in severity, ranging from minor to fundamental breaches that may entitle the other party to seek remedies, such as damages or specific performance.

Completion of all terms represents the successful fulfillment of the contract's obligations, which would not lead to a breach but rather to the conclusion of the contract. An agreement to renegotiate suggests a willingness to modify the terms of the contract and does not indicate a breach has occurred. Similarly, mutual consent to withdraw from a contract means that both parties agree to terminate the contract, which also does not constitute a breach in the traditional sense as it occurs with the agreement of all involved parties. Thus, the correct answer focuses entirely on the failure of one party to adhere to the conditions outlined in the contract, marking it as breached.