Which of the following describes express authority?

Express authority refers to the power explicitly granted to an agent by a principal, typically through clear and formal communication. This kind of authority is outlined in a contract or agreement, where the principal designates specific tasks or responsibilities the agent is allowed to perform on their behalf. Because the authority is expressly stated, both the agent and third parties can clearly understand the scope of the agent's powers, reducing ambiguity in their actions.

The other concepts mentioned, such as authority inferred from actions, authority that exists by virtue of position, and authority limited to specific tasks, pertain to different types of authority. Inferred authority indicates that an agent's power arises from actions or circumstances rather than direct communication. Authority tied to a position reflects powers inherent to a specific role rather than being specifically granted. Lastly, authority limited to specific tasks suggests that the agent has constraints on their activities, but this does not capture the essence of express authority, which is about the clear and explicit delegation of power from the principal.