Jerry Srruth, CFA, works as a portfolio manager for a large investment management firm and manages investment portfolios for high-net-worth individual clients. Smith relies on high-quality investment research that is consistently sound from one of his favorite brokerage firms, Stafford Securities. In return Smith pays Stafford a higher than average commission. Additionally, Smith uses Cannan Securities, another brokerage firm for trade execution only for a particular client at that client's direction. Cannan Securities charges the highest commission of all of the brokerages Smith currently uses. Has Smith most likely violated the Standards of Professional Conduct（）
A. No.
B. Yes, by using Stafford Securities with higher than average commission.
C. Yes, by using Cannan Securities with the highest commission.
参考答案：A
解析：
为客户进行交易并不需要寻找一个交易成本最低的券商，而是应找到性价比最高的券商，由于该券商具备高质量的投资研究，所以可以支付给其更高的佣金，其实最终得利的还是客户。同时，客户也能指定他或她自己选择的券商进行交易。