To have the ultimate authority for a mobile offshore drilling unit while it is under tow, a rig mover must ____________________.

A
hold an Able Seaman certificate and be designated as the person in charge of the rig
B
hold a license as Offshore Installation Manager and be held as the person in charge of the rig
C
be certified by an approved classification society and be designated as the person in charge of the rig
D
be certified by the Minerals Management Service and be designated as the person in charge of the rig
E