Where does the look-out man stand?（）.

A.In positions in which the noises in the ship are least likely to interfere with the hearing of a fog signal and the man can see clearly

B.In positions in which the noises in the ship are much likely to interfere with the hearing of a fog signal

C.In positions in which the hearing of a signal is reduced to a minimum

D.In a position in which the man can see clearly