BOTH INTERNATIONAL & INLAND You are underway in a narrow channel and are being overtaken by a vessel astern. The overtaking vessel sounds a signal indicating her intention to pass you on your starboard side. If such an action appears dangerous, you should sound __________.

A
one prolonged followed by one short blast
B
one prolonged, one short, one prolonged, and one short blast in that order
C
five short and rapid blasts
D
three short and rapid blasts
E