Which of the following is NOT a type of protozoan parasite?

The correct choice is C, as fungi are not classified as protozoan parasites. Protozoans are a diverse group of unicellular organisms that can be categorized into different types based on their modes of movement and feeding strategies. Amoebas, flagellates, and ciliates are all specific types of protozoa.

Amoebas are characterized by their amorphous shape and movement via pseudopodia. Flagellates possess one or more whip-like structures called flagella that aid in their locomotion. Ciliates are covered in tiny hair-like structures called cilia which facilitate movement and feeding. Fungi, on the other hand, belong to a separate kingdom of life, primarily known for their roles as decomposers and their multicellular structures in many cases—such as molds and mushrooms. This fundamental distinction in classification highlights why fungi cannot be considered a type of protozoan parasite.