Which of the Following Statements Best Describes an Agent's Duty

Which of the following statements best describes an agent's duty of loyalty?

A) It refers to a fiduciary duty an agent owes not to act adversely to the interests of the principal.
B) It refers to a duty that an agent has to maintain an accurate accounting of all transactions undertaken on the principal's behalf.
C) It refers to a duty that an agent owes to notify the principal of important information concerning the agency.
D) It refers to a duty that an agent owes to meet the standards of reasonable care, skill, and diligence implicit in all contracts.