This question is really about your opinion and what you think. But if it were me i would pick c.
Answer:
a noun is a name place animal or a thing. an adjective describes a noun. and a preposition are words used before a noun. example of preposition: There is some MILK in the fridge. example of noun: jack, car. example of adjective: the chair is very SMALL.
Explanation:
The ostrich can't fly (hope this helps)
