The correct answer is D) express authority.
Janelle has an art collection that she wants to sell. She calls Amber and tells her to sell the art collection for her at an upcoming auction. Although not specifically told to do so, Amber prints flyers and distributes them to all the art galleries in the area. Amber’s actions are an example of express authority.
Express authority means that an agent has the power to make decisions and act on behalf of another person. In this case, Janelle gave Amber the authority to act in the best interests of her art collection to be promoted by her agent, The authority could be granted orally or written. WIth that faculty, Amber is supposed to do everything to promote and sell Janelle's' art collection.
The other options of the question were A) apparent authority. B) respondeat superior. C) intermediary agency.