Cockroaches have low genetic diversity, yet are in no danger of going extinct. Which statement is most correct about the reproductive success of cockroaches?

A. Cockroaches are the "fittest" of all beetles.
B. Cockroaches have adaptations to be able to live in any environment.
C. Cockroaches have evolved to be generalists.
D. Cockroaches have adaptations that allow for interbreeding without any harm.