A选项

问题如下：

Michael Stone, CFA, the CEO of Pyro Hedge Fund, focuses exclusively on short selling strategies. Stone targets corporations experiencing significant stock price surges. He compensates various consultancies to promptly inform him of any legislative or regulatory shifts that could affect his chosen companies. Stone shorts stocks of companies he believes are at their revenue and profit zeniths and are reported by his advisors as likely to encounter legal or regulatory hurdles. Following his short selling, Stone initiates a media blitz to reveal all detrimental data he's acquired about the firm, irrespective of its public availability. Which of Stone’s actions is most likely in contravention of the CFA Institute Standards of Professional Conduct?

选项：

A.Short selling of stocks B.Utilizing intelligence from consultancies C.Broadcasting negative company information

解释：

Option C is correct.Stone's conduct concerning his media campaigns and related actions are aimed at intentionally driving down stock prices for his own benefit. He consciously engages in practices that cause unnatural stock price fluctuations, intending to significantly affect the issuer's stock value. This behavior is a breach of Standard II(B)–Market Manipulation according to the CFA Code and Standards.