The correct option is B Hyperparasites
Symbionts are organisms where two of them live in symbiosis with one another.
Endoparasites are parasites, such as tapeworm, that lives inside the host.
Ectoparasites are parasites, such as flea, that lives on the outside of the host.
Hyperparasites are parasites whose host is also a parasite. This form of parasitism is especially common among entomophagous parasites.
Thus, the correct answer is option D.