Chytridiomycetes Produce Enzymes That Digest Cellulose,chitin,and Similar Molecules

Chytridiomycetes produce enzymes that digest cellulose,chitin,and similar molecules.These fungi are contributing to the decline of amphibians worldwide through what mechanism?

A) by digesting chitin in the cell wall of the frog's cells
B) by digesting cellulose in the cell wall of the frog's cells
C) by infecting their lungs
D) by killing their eggs in the water
E) by digesting keratin in the frog's skin