Answer: dissociate from client activities they believe are unethical.

**Explanation:** According to the CFA Institute's Code and Standards, Standard I(A) - Knowledge of the Law requires members to: 1. **Understand and comply with applicable laws, rules, and regulations** governing their professional activities 2. **Not knowingly participate in or assist in violations** of applicable laws, rules, or regulations 3. **Dissociate from any activity that would violate applicable laws, rules, or regulations** Let's analyze each option: **Option A: Correct** - Members are required to dissociate from client activities they believe are unethical or illegal. This is a key requirement under Standard I(A). If a member becomes aware of illegal or unethical activities by a client, they must take steps to dissociate from those activities. **Option B: Incorrect** - Members are NOT required to have detailed knowledge of ALL laws that could potentially govern their activities. The standard requires members to understand and comply with applicable laws, but they are not expected to be legal experts. They should make reasonable efforts to understand the laws that apply to their specific professional activities. **Option C: Incorrect** - While reporting violations is encouraged under Standard I(D) - Misconduct, it is not a specific requirement under Standard I(A) - Knowledge of the Law. The primary focus of Standard I(A) is on compliance with laws and regulations, not on reporting fellow members' violations. **Key Points:** - Members must comply with the strictest applicable laws (whether from their home country, country where they work, or CFA Institute Standards) - When in doubt about legal requirements, members should consult with compliance personnel or legal counsel - Members must not knowingly participate in or assist in violations of applicable laws - If unable to dissociate from illegal activities, members may need to resign from their position

Author: LeetQuiz .