When the inert gas system is temporarily unable to maintain a positive pressure, or an oxygen content less than 8%, cargo operations should _________.

Correct Answer: Option B — be shutdown immediately

Inert Gas Systems (IGS) are critical for preventing explosions by maintaining an oxygen-deficient atmosphere. If the system fails to maintain positive pressure or the oxygen content exceeds 8%, the risk of a flammable atmosphere is too high. Operations must cease immediately to prevent a catastrophic fire or explosion.