While drilling loaded as shown in Sample Load Form #4 (Drilling), the DEEP DRILLER suffers a sudden unexpected inclination to port and aft. Strong winds and high waves are from the starboard bow. Among the possible causes, you should consider ___________________.

A
failure of mooring lines 1 or 2
B
failure of mooring lines 3 or 4
C
leak in ballast tank #9P
D
ballast tanks equalizing into tank 10P
E