问题如下：
Anderb, a portfolio manager for XYZ Investment Management Company—a registered investment organization that advises investment firms and private accounts—was promoted to that position three years ago. Bates, her supervisor, is responsible for reviewing Anderb’s portfolio account transactions and her required monthly reports of personal stock transactions. Anderb has been using Jonelli, a broker, almost exclusively for brokerage transactions for the portfolio account. For securities in which Jonelli’s firm makes a market, Jonelli has been giving Anderb lower prices for personal purchases and higher prices for personal sales than Jonelli gives to Anderb’s portfolio accounts and other investors. Anderb has been filing monthly reports with Bates only for those months in which she has no personal transactions, which is about every fourth month. Which of the following is most likely to be a violation of the Code and Standards?
选项：
A.Anderb failed to disclose to her employer her personal transactions.
B.Anderb owned the same securities as those of her clients.
C.Bates allowed Anderb to use Jonelli as her broker for personal trades.
解释：
A is correct.
This question involves three of the Standards. Anderb, the portfolio manager, has been obtaining more favorable prices for her personal securities transactions than she gets for her clients, which is a breach of Standard III(A) –Loyalty, Prudence, and Care. In addition, she violated Standard I(D) –Misconduct by failing to adhere to company policy and by hiding her personal transactions from her firm. Anderb’s supervisor, Bates, violated Standard IV(C) –Responsibilities of Supervisors; although the company had requirements for reporting personal trading, Bates failed to adequately enforce those requirements. Answer B does not represent a violation because Standard VI(B) –Priority of Transactions requires that personal trading in a security be conducted after the trading in that security of clients and the employer. The Code and Standards do not prohibit owning such investments, although firms may establish policies that limit the investment opportunities of members and candidates. Answer C does not represent a violation because the Code and Standards do not contain a prohibition against employees using the same broker for their personal accounts that they use for their client accounts. This arrangement should be disclosed to the employer so that the employer may determine whether a conflict of interest exists.
请问B为什么不正确，B同学的私人账户是得到了broker的特权，可以买更低的成本，卖更高的价格和他的其他客户相比
