INLAND ONLY You are overtaking another power-driven vessel in a narrow channel, and you wish to overtake on the other vessel's port side. You will sound a whistle signal of __________.

Correct Answer: Option C — two short blasts

Inland Rules 34(c)(i) specify that a power-driven vessel intending to overtake another on the port side in a narrow channel must sound two short blasts to signal its precise operational intention to the lead vessel.