Final answer:
Latent heat is released during the transition from liquid to solid, known as solidification, and is an example of water's heat of fusion.
Step-by-step explanation:
The correct answer to the question is that latent heat is released when a liquid is transformed into a solid, which, in the case of water, is 80 cal/gm. An example of this is when water uses the heat of fusion. Therefore, the correct statement would be: C) Latent heat, Solidification. As we know, phase changes such as freezing and condensation are exothermic processes, releasing heat as the substance transitions to a more ordered state.