| Which of the following is FALSE regarding best execution, the CFA Institutes Trade Management Guidelines, and ethics in trading?  | | A) | Best execution should be measured over short, relevant time periods. | 
 |  | | B) | The buy-side traders relationship with clients must come before their relationship with sell-side traders. | 
 |  | | C) | Record keeping is a key component of the CFA Institutes Trade Management Guidelines. | 
 |  | | D) | Buy-side traders have a fiduciary duty to their clients. | 
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 Answer and Explanation
 
 Although best execution can be measured ex post over time, it should not be used to evaluate trading effectiveness over a short time span. Buy-side traders and portfolio managers have a fiduciary duty to maximize the value of their clients portfolio.
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