The owner or Master of a towing vessel must ensure that each person that directs and controls the movement of the vessel knows all of the following EXCEPT ___________ .

A
the effects of maneuvering on the vessel and its tow
B
the speed and direction of any current for the area being transited
C
how to apply variation and deviation to readings from a magnetic compass
D
the ownership of the vessel(s) being towed
E