Here's why:
* Interrogative pronouns are used to ask questions. They include words like: who, whom, whose, what, which, and where.
* "Each" is a distributive adjective, meaning it refers to every single member of a group.
Examples:
* Interrogative Pronoun: "Who is going to the party?"
* Distributive Adjective: "Each student received a prize."
Let me know if you have any other questions!