Which Statement Regarding Microbes in Reindeer Rumen Is False

Which statement regarding microbes in reindeer rumen is false?

A) Microbes that digest fibers are less prevalent in summer communities than winter communities.
B) Microbes that digest cellulose are less prevalent in winter communities than summer communities.
C) Microbes that digest proteins are more prevalent in summer communities than winter communities.
D) Microbes that digest starch are more prevalent in summer communities than winter communities.