Which of the following is NOT a mandatory practice of an agent's fiduciary duties?

The correct answer highlights the distinction between mandatory fiduciary duties and practices that may not always be in the best interest of the client. Fiduciary duties require agents to act with loyalty and care towards their clients, which includes adhering to reasonable instructions. However, following unreasonable instructions does not fall under the agent's fiduciary obligations.

An agent is compelled to act in good faith and prioritize the interests of their clients, ensuring that the clients' needs come first in every aspect of the transaction. Additionally, maintaining necessary accounts, such as trust accounts, and keeping clients informed are integral components of the agent's fiduciary duties. These practices ensure transparency and accountability, fostering a relationship of trust between the agent and the client. Therefore, the most significant point is that while fiduciaries must honor client instructions, they are not bound to follow those that are unreasonable, ensuring that they can act judiciously in the client's best interests.