Which statement is TRUE about the use of a "gogeye"?

A
The gogeye is a precalculated form and ready reference for use by the tug captain.
B
The tug can be drawn under its towline by using a capstan to heave in on the gogeye.
C
The gogeye is an instrument fitted over the towing winch that transmits warnings of dangerous hawser angles to the pilothouse.
D
Gogeyes cannot be used to prevent tripping a tug.
E