三个选项的区别是什么

问题如下：

In the context of ethical standards, which statement is true for a CFA member who holds a supervisory role?

选项：

A.Only that the member is obliged to ensure subordinates adhere to the Code and Standards.

B.Only that the member should use the CFA Institute Code of Ethics as an interim measure in the absence of firm compliance procedures.

C.Both that the member must ensure compliance and use the CFA Institute Code of Ethics in lieu of firm compliance procedures.

解释：

Option A is correct. Standard IV(C) mandates that supervisors must exert reasonable efforts to guarantee that their subordinates comply with the applicable laws, regulations, and the Code and Standards. The statement about substituting the CFA Institute Code of Ethics for a lack of compliance procedures at the firm is incorrect, as the responsibility lies in declining supervisory roles until adequate procedures are established by the firm.