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 __________.

Correct Answer: Option B — the drill string has broken

A sudden forward inclination while drilling points to a rapid structural load release, such as the drill string breaking. This instantly removes massive top-weight tension and tension loads from the derrick, altering vessel trim.