It would be C.
because it would destroy an environment very very rapidly for anything in its path
The answer is B. The specific heat means the heat amount the substance needs to absorb when the temperature increases 1℃. The high specific heat means that it needs a huge amount of heat when increase just 1℃. For A, the dissolved salts can help decrease the freezing point.
Probably it would be like a room since the door would be the cell membrane and the nucleus would be your bed not 100% sure tho
