INLAND ONLY You are underway in a narrow channel, and are being overtaken by another power-driven vessel. The overtaking vessel sounds the signal indicating his intention to pass you on your starboard side. You signal your agreement by sounding __________.

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