You are Master of a U.S. flag vessel which was drydocked for bottom cleaning in Rotterdam, Netherlands. Upon return to a U.S. port, you must __________.

A
file a customs' form for duty on this repair
B
file no extra reports
C
file a report of the drydocking with the U.S.C.G. Officer in Charge, Marine Inspection
D
obtain a U.S. Coast Guard diver to certify the work
E