Excessive recirculation of inert gas is _________.

Correct Answer: Option A — undesirable and it may lead to high oxygen content of the inert gas

Excessive recirculation can lead to the buildup of oxygen within the inert gas system. If the gas is repeatedly cycled through the scrubber without sufficient fresh flue gas intake, the oxygen content may rise above the required safety limits, potentially creating a hazardous atmosphere within the cargo tanks.