B

问题如下：

Lin Liang, CFA, is an investment manager and an auto industry expert. Last month, Liang sent securities regulators an anonymous letter outlining various accounting irregularities at Road Rubber Company. Shortly before he sent the letter to the regulators, Liang shorted Road stock for his clients. Once the regulators opened an investigation, which Liang learned about from his sources inside the company, Liang leaked this information to multiple sources in the media. When news of the investigation became public, the share price of Road immediately dropped 30%. Liang then covered the short positions and made $5 per share for his clients. Liang least likely violated which of the CFA Institute Standards of Professional Conduct?

选项：

A.Priority of Transactions

B.Misconduct

C.Market Manipulation

解释：

The member has not violated Standard VI(B): Priority of Transactions because this standard concerns client investment transactions having priority over member or candidate investment transactions and is not applicable here. The member has engaged in information-based manipulation of Road stock in violation of Standard II(B): Market Manipulation and Standard I(D): Misconduct. Members and candidates must refrain from "pumping up" (or down, in this case) the price of an investment by issuing misleading positive (or negative) information for their or their clients' benefit.