In Your Backyard You Overturn a Large Rock

In your backyard you overturn a large rock. In the damp soil underneath the rock, you see various insects scurrying for cover: two black beetles, five black ants, two brown beetles, and three pillbugs. In this community of organisms, relative abundance favors

A) pillbugs.
B) ants.
C) beetles.
D) pillbugs and beetles equally.