Final answer:
The termination of an agency by the actions of the parties occurs when the agent and the principal mutually agree to end the agency relationship.
Step-by-step explanation:
The termination of an agency by the actions of the parties occurs when the agent and the principal mutually agree to end the agency relationship. This can happen through various actions such as mutual consent, completion of the purpose of the agency, or reaching the expiration date specified in the contract. One example of termination by the actions of the parties is the expiration of the contract. When a contract between the agent and principal comes to an end due to the specified time limit, the agency relationship is terminated.