Question 566 Rules of the Road

The correct answer is C) vessels pushing ahead. The lighting requirements for vessels pushing ahead differ between inland waters and international waters. In inland waters, vessels pushing ahead must display the same lights as a power-driven vessel underway, while in international waters, the lighting requirements for vessels pushing ahead are different from those for power-driven vessels underway. The other options (A, B, and D) do not involve the specific differences in lighting requirements between inland and international waters for vessels pushing ahead, which is the key distinction that makes C the correct answer.