Which organism type typically develops inside another insect?

The correct answer is C, as parasitoids are a specific type of organism that develops inside another insect, ultimately leading to the host's death. These organisms, usually wasps or flies, lay their eggs inside or on the body of the host insect. The larvae then feed on the host from the inside, using it as a source of nutrients until they mature and emerge.

This life cycle is a crucial aspect of the biological control of pests, as parasitoids can help regulate pest populations in agricultural settings. Their development inside the host distinguishes them from other types of organisms like pests, which typically feed on plants or other materials without the specific lifecycle involving internal development, or predators, which actively hunt and consume other organisms as a whole. Herbivores, meanwhile, primarily consume plant material and do not have the same relationship as parasitoids do with their hosts.