Answer: You, your, and yours are pronouns.
Explanation: Pronouns are words that can function as a noun phrase and that refers to either the participants or to something or someone else mentioned in the sentence.
For example:
"You want some apple pie, right?" -- In this sentence the pronoun 'you' is used and can be labeled the noun phrase. This also mentions the main participant in the sentence.
But also pronounces can be used to mention not only the main subject but other items/people in the sentence. Here is two examples of other ways pronouns can be used:
"She doesn't like Fall and the cold."
"Don't use that, it's almost broken."