154 You are the Master of an uninspected diesel towing vessel of 190 GT operating on a regular run from New York to the Gulf of Mexico. Which statement is TRUE?

A. Able Seamen are not required in the deck crew.
B. Sailors may stand watch for 6 hours on and 6 hours off.
C. A licensed Chief Engineer is required.
D. All crew members must have Merchant Mariner's Documents.