Why Are Dermatophyte Infections Common

Why are dermatophyte infections common?

A) Fungus is immune to hand sanitizing gel,which most people use often instead of washing hands.
B) Fungus is found most everywhere and can cause infections when given an opportunity.
C) Fungus infections are very contagious and easily spread.
D) Fungus infections are hard to get rid of and they easily adapt to their environment.