A barge displaying a 2' X 3' white sign with the word "WARNING" followed by "DANGEROUS CARGO" in black letters ______________.

A
would require that a cargo information card be carried in the pilothouse of the towboat
B
may not be spotted next to the towboat while under tow
C
may not be in the same tow as a barge carrying gasoline
D
must be located as a lead barge in a tow
E