BOTH INTERNATIONAL & INLAND You are approaching another vessel on crossing courses. She is approximately half a mile distant on your starboard bow. You believe she will cross ahead of you but she sounds a whistle signal of five short blasts. You should __________.

A
sound a signal of one prolonged blast
B
make a large course change
C
reduce speed slightly to make sure she will have room to pass
D
wait for another whistle signal from the other vessel
E