A contract entered into by an agent without authorization can be enforced by:

The principal has the authority to ratify a contract that an agent entered into without authorization. When an agent acts beyond the scope of their authority, the principal is not initially bound by the contract. However, the principal has the option to accept the terms of the contract post-facto, which is what is known as ratification. Once ratified, the contract becomes enforceable as if the agent had been authorized to enter into it from the beginning.

This principle is grounded in the agency relationship, where the interaction between a principal and an agent involves an expectation that the principal has control over the actions of the agent. By choosing to ratify the unauthorized act, the principal validates the contract and holds the other party accountable to its terms. The other options do not address the fundamental nature of the ratification process within agency law and its implications for the enforceability of contracts.