When a CFA Institute member suspects a client or a colleague of planning or engaging in ongoing illegal activities, which of the statements about the actions that the member should take is most correct According to the CFA Institute Standards of Professional Conduct, the CFA Institute member should:（）

A. consult counsel to determine the legality of the activity.

B. consult counsel to determine the legality of the activity and disassociate from any illegal or unethical activity if the member has reasonable grounds to believe that the activity is illegal or unethical.

C. ignore the suspected illegal activity unless the suspected party is a CFA Institute member.

案情：某区工商局和卫生局根据举报和调查，以出售变质食品为由，对某超市(不具备法人资格)予以罚款2000元的处罚。该店业主吴某不服，以工商局为被告向人民法院提起行政诉讼。
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