Prior to boarding from a MODU, a davit-launched liferaft should be well ventilated of excess __________.

Correct Answer: Option A — carbon dioxide gas

Inflatable liferafts use carbon dioxide gas to inflate the buoyancy chambers and floor. Residual gas often leaks into the interior canopy or accumulates during activation, requiring thorough ventilation prior to personnel boarding to prevent asphyxiation hazards aboard MODUs.