The ______ noise of traffic annoyed me and distracted my attention to reading the detective story.

A．Corporate executives in general are worth the high pay they receive.
B．The income of corporate executives is proportional to the growth of corporate profits.
C．Corporate executives tend to take advantage of their position to enrich themselves.
D．The performance of corporate executives affects their own interests more than those of the shareholders.

A．doubtful
B．optimistic
C．positive
D．approving