Which choice describes express actual authority?

Express actual authority refers to the authority explicitly granted to an agent by a principal through clear and direct communication. This kind of authority is characterized by the principal's explicit statements, whether orally or in writing, outlining what the agent is empowered to do on their behalf. The key point is that this delegation of authority is unmistakable and unambiguous, making it clear what actions the agent is authorized to undertake.

In contrast, the other options describe different types of authority. Authority granted through actions relates to implied authority, where an agent's power is recognized by their behavior rather than explicit permission. Authority based on long-standing customs refers to customary authority, which can arise from established practices within a particular business context but is not directly communicated. Finally, authority implied from context refers to a situation where the authority of the agent is deduced from the circumstances, rather than being explicitly granted by the principal. Therefore, the correctness of the response hinges on the definition of express actual authority as a direct and clear delegation of power from the principal.