A principal has several rights against an agent who breaches their duties. Option D correctly states ALL these rights exist: (1) recover damages for breach of duty, (2) obtain an account of secret profits made by the agent and recover those profits while resisting the agent's claim for remuneration, and (3) resist the agent's claim for indemnity against liabilities the agent incurred while acting improperly. Options A, B, and C each list one valid right but incorrectly omit the others. The principal's rights are comprehensive and cumulative.