Which statement is TRUE concerning a towing vessel which,due to the nature of her work,is unable to keep out of the way of another vessel?()
A:By day,she shall carry a black cylinder shape
B:By day,she shall carry two black balls in a vertical line
C:By night,she would show the same lights as a vessel not under command
D:By day,she would show the same shapes as a vessel restricted in her ability to maneuver
出自:海船船员证