Final answer:
To comply with the Safeguard Rules of Gramm, Leach, Bliley, a loan officer should develop, implement, and maintain a written information security plan, designate one or more employees to be responsible for the plan, and train employees on it.
Step-by-step explanation:
To comply with the Safeguard Rules of Gramm, Leach, Bliley, a loan officer should:
- Develop, implement, and maintain a written information security plan.
- Designate one or more employees to be responsible for the information security plan.
- Train employees on the information security plan.
Therefore, the correct answer is option D: All of the above.