Q: Fact 1: Being burried under soil and mud changes vegetation into peat through extreme heat and pressure in a swamp over a long period of time. Fact 2: After a long time, the moss can form into a peat. Given the two facts above, what forms into peat through extreme heat and pressure over time?

Pick from: a). bamboo; b). desiccation; c). burrs; d). elms; e). moss; f). coal; g). candy; h). meat;
The answer is:
e).