If your vessel has a list to port due to negative GM and off-center weight, the first corrective measure you should take is to __________.

Correct Answer: Option A — fill the starboard double-bottom

Negative initial stability (loll) combined with an off-center weight creates a dangerous dynamic. The primary corrective action is lowering the center of gravity and reestablishing positive transverse stability by filling the low-side double-bottom ballast tank.