INTERNATIONAL AND INLAND Your 18-meter vessel is under sail at night displaying sidelights, sternlight, and a red light over a green light at the masthead. If you start the auxiliary engine and engage the propeller, you must_______.

A
turn your stern light off
B
show two green lights instead of a red and green at the masthead
C
display a white light in sufficient time to prevent collision
D
turn off the red over green, turn on the white masthead light
E