BOTH INTERNATIONAL AND INLAND You are under sail with the auxiliary engine running and the propeller engaged on a 15 meter sail vessel. Which statement is TRUE?

A
This condition is indicated by a conical shape, apex downwards.
B
You should maintain course and speed when approaching a power-driven vessel.
C
You must display two green lights in a vertical line at or near the masthead.
D
You are considered a sailing vessel as long as sail propulsion affects the vessel's maneuverability.
E