While drilling loaded as shown in Sample Load Form #4 (Drilling), the DEEP DRILLER suffers a sudden unexpected forward inclination. The wind and waves are light from the starboard bow. Among the possible causes, you should consider ______________________.

A
failure of mooring lines 2 and 3
B
drilling crew has dumped the mud
C
the drill string has broken
D
ballast tanks equalizing into tank 1P
E