Which sentence in the section about breeding should be removed to maintain the logical flow of ideas?

A
.

The female will lay groups of 12–400 eggs in the autumn, in a small case that has a hard, protective shell.
B
.

Insects are not the only creatures in the animal kingdom that create protective shells for their eggs.
C.

Small mantids emerge in the spring.
D
.

One generation develops each season.

B. Insects are not the only creatures in the animal kingdom that create protective shells for their eggs.