A buyer hired a buying agent to assist in purchasing a new house. Both parties entered into a contract that specified the length of time the buying agent would act on behalf of the buyer as the buyer's real estate agent. Which type of agency authority was the buying agent given by the buyer?

A. The buying agent was given apparent authority.

B. The buying agent was given authority by ratification.

C. The buying agent was given implied authority.

D. the buying agent was given actual authority.