INLAND ONLY In a narrow channel, a power-driven vessel desiring to overtake another power-driven vessel on the other vessel's starboard side will sound which whistle signal?

Correct Answer: Option A — one short blast

33 CFR 83.34(c)(i) mandates that a vessel overtaking another in a narrow channel and intending to pass on the starboard side must sound one short blast. This signal informs the overtaken vessel of the intent to pass, requiring an acknowledgment before the maneuver proceeds.