A CFA candidate, who is an investment bank equity analyst writes a research report on an oil company recommending a buy. After reviewing the report and not seeing any disclosures a pension fund manager asks the analyst if the investment bank is currently undertaking any corporate finance activity with this oil company. The analyst does not mention or include in the research report, that he is related to the majority shareholder of the investment bank and that he owns shares in the oil company. According to the Standards of Practice Handbook, the analyst is least likely to have violated the CFA Institute Standards of Professional Conduct that relates to:（）

A. disclosure of conflicts.

B. independence and objectivity.

C. additional compensation arrangements.

男性同性恋患者，20岁，舌背白色病损不能被擦除。

若该病舌背发展有硬性小结，继而有线性或不规则穿凿性溃疡，该病的诊断最可能是（）。

A.阿弗他溃疡

B.梅毒

C.嗜酸性肉芽肿

D.坏死性涎腺化生

E.白塞病