BOTH INTERNATIONAL & INLAND You are on a vessel nearing a bend in the channel where, because of the height of the bank, you cannot see a vessel approaching from the opposite direction. Which signal should you sound?

Correct Answer: Option C — One prolonged blast

Rule 34(e) mandates that a vessel nearing a bend or area where other vessels may be obscured by an intervening obstruction must sound one prolonged blast. This serves as a mandatory audible warning to alert any vessel that may be approaching from the opposite side of the blind bend.