Hyperparasite:
A hyperparasite is a type of parasite that infects another parasite. In other words, it is a parasite that lives off another parasite. This unique relationship between two parasites is known as hyperparasitism.

Example of a Hyperparasite:
The correct example of a hyperparasite from the given options is Plasmodium.

Explanation:
- Mosquito: Mosquitoes are not hyperparasites. They are considered as vectors that transmit diseases by acting as intermediate hosts for certain parasites, such as Plasmodium.
- Plasmodium: Plasmodium is a protozoan parasite that causes malaria in humans. It is transmitted to humans through the bite of an infected female Anopheles mosquito. However, Plasmodium itself can also be infected by a hyperparasite called Gregarina. Gregarina is a genus of parasitic protozoans that infects other parasites, including Plasmodium. This makes Plasmodium an example of a hyperparasite.
- Wuchereria: Wuchereria is a filarial parasite that causes lymphatic filariasis, also known as elephantiasis. It is transmitted to humans through the bite of infected mosquitoes. Wuchereria is not a hyperparasite.
- Tapeworm: Tapeworms are not hyperparasites. They are endoparasitic flatworms that live in the intestines of vertebrate hosts, including humans.

In conclusion, Plasmodium is an example of a hyperparasite as it can be infected by the hyperparasite Gregarina. This unique relationship demonstrates the complex interactions that can occur within the world of parasites.