Ooh, I know this one! Definitely "their". A pronoun is anything along the lines of he/him, she/her, they/their, xe/xis, it/its, etc. I hope I helped :)
You should never loose sight of what yo are WRITEING ABOUT
People feel happy
hope this helps :)
Answer:
entertainment
Explanation:
suffixes are added to the end of the sentence
A specific word is like saying an actual name instead of their. EX - Hey that is Jacobs- Hey that is theirs