INLAND ONLY If you were coming up on another power-driven vessel from dead astern and desired to overtake on the other vessel's starboard side, which whistle signal would you sound?

Correct Answer: Option D — One short blast

Under Inland Rule 34(a), one short blast indicates 'I intend to leave you on my port side' (port-to-port pass), requiring a confirming one short blast from the other vessel.