Which fire extinguisher is most prone to freezing when stowed in low temperatures?

Correct Answer: Option A — Foam

Foam extinguishers contain a water-based solution that is susceptible to freezing in low-temperature environments. If the liquid freezes, the extinguisher may become inoperable or the cylinder could rupture. Proper stowage in heated areas or the use of anti-freeze additives is required to maintain operational readiness in cold climates.