The correct answer is C. Describes a noun.
Step-by-step explanation
The adjective is the name that a word-class receives, these type of words have the function of qualifying the noun, and that provides additional information to its meaning. For example, ‘the yellow (adj) house (noun)’, ‘the old (adj) ship (noun)’. According to the above, the correct answer is C. "Describe a noun" because Amara chooses the adjective "hilarious" to qualify the noun "the movie". After all, this adjective allows the reader to understand that the movie was very funny or "had the audience roaring with laughter."