Explanation

Correct Answer: B

According to the CFA Institute Standards of Professional Conduct, specifically Standard III(C) - Suitability, members must judge the suitability of investments in the context of the client's total portfolio. This means that suitability must be evaluated holistically, considering how each investment fits within the client's overall investment strategy, risk tolerance, and financial objectives.

Why the other options are incorrect:

A. An appropriate suitability determination will prevent some investments from losing value

• This is incorrect because suitability determinations do not guarantee against investment losses. Even suitable investments can lose value due to market conditions or other factors. The suitability standard is about ensuring investments are appropriate for the client's circumstances, not about preventing losses.

C. The higher the expected investment return, the lower the need to determine the investment's suitability

• This is incorrect because suitability must always be determined regardless of expected returns. Higher expected returns often come with higher risk, making suitability assessment even more critical. The suitability requirement applies to all investments, regardless of their expected return profile.

Key Points:

1. Suitability must be assessed in the context of the client's entire portfolio
2. Suitability does not guarantee against losses
3. All investments require suitability assessment regardless of expected returns
4. The standard requires considering the client's investment objectives, risk tolerance, and financial constraints