单选题 Karen, CFA, is the investment manager of a corporate pension plan. Under ERISA, she owes her fiduciary duty to: A. the plan sponsor. B. the firm's shareholders. C. the plan participants and beneficiaries.

【正确答案】 C

【答案解析】Under ERISA, fiduciaries must act solely in the interest of, and for the exclusive purpose of benefiting, the plan participants and beneficiaries.