What features should a proper gas locker on a boat have to make a leak like this less dangerous in the first place?

A. It is best to store the gas bottle directly in the bilge for easy access to the pipework

B. A gas locker only needs to keep the bottle from sliding around — drainage is not important

C. Gas bottles are equally safe stored anywhere on the boat, including inside the main cabin

D. A sealed locker that only the gas bottle and its fittings sit in, with a drain that goes overboard above the waterline (not into the bilge) — this means any leaking gas drains safely away outside the boat instead of collecting inside the hull

A. Light the stove quickly to burn off the smell before it gets worse

B. Switch on the cabin lights to get a better look for the source of the smell

C. Ignore a faint smell since it is probably nothing serious

D. Never light anything, switch on anything electrical, or create any spark near the smell — gas vapour, especially LPG, is heavier than air and can build up invisibly in the bilge, ready to ignite from the smallest spark

A. Leave the gas supply exactly as it is and deal with it later

B. Only turn off the cooker control knob, leaving the main bottle valve open

C. Turn the gas supply up higher to "flush it through" faster

D. Turn off the gas at the bottle itself (the main valve), not just at the cooker — this stops any more gas flowing into the system while the leak is investigated