What is the legal duty to act in the best interest of another called?

• A. Fiduciary duty
• B. Fiduciary
• C. Compensatory damages
• D. Punitive damages

Answer: (A)

The legal duty to act in the best interest of another is called a fiduciary duty. In every relationship built on trust—such as a trustee managing a trust for beneficiaries, a lawyer advising a client, a financial advisor handling a client’s funds, or a corporate officer serving shareholders—the person in that role must prioritize the other party’s interests, act loyally, and exercise reasonable care and disclosure. They must avoid conflicts of interest and refrain from using their position for personal gain when making decisions that affect the other party. The term describes the obligation itself, not the person who bears it—the fiduciary. The other options refer to remedies or to the individual, not the duty: compensatory and punitive damages are types of damages, not duties.