A race track turn would be better than a Williamson turn in recovering a man overboard if .

A race track turn would be better than a Williamson turn in recovering a man overboard if .
A.the man has been missing for a period of time
B.the sea water is very cold and the man is visible
C.there is thick fog
D.the wind was from astern on the original course
正确答案：the sea water is very cold and the man is visible