Arthur Harrow, CFA, is a pharmaceuticals analyst at Dominion Asset Management. His supervisor directs him to prepare separate research reports on Miracle Drug Company and Wonder Drug Company. Harrow’s former college roommate and close friend is the president of Miracle. Harrow owns 2000 shares of Wonder, which currently sells for $ 25 a share. Harrow’s supervisor is unaware of these facts. According to CFA Institute Standards of Professional Conduct, which of the following action, if any, is Harrow required to take if he writes the research reports（）

A. Harrow must disclose to Dominion both his relationship with the president of Miracle and his ownership of shares in Wonder.

B. Harrow must disclose to Dominion his relationship with the president of Miracle but not his ownership of shares in Wonder.

C. Harrow must disclose to Dominion his ownership of shares in Wonder but not his relationship with the president of Miracle.

若发动机活塞销响，响声会随发动机负荷增加而（）。

A、减小

B、增大

C、先增大后减小

D、先减小后增大