A) Adjective
B) Noun
C) Adverb
D) Pronoun
🧠 Explanation:
- “What” is asking a question, so it functions as an interrogative.
- It replaces the object of the verb “do” — it’s what he wanted you to do.
- Since it stands in place of a noun and asks a question, it's a pronoun.
- Thus, “What” is an interrogative pronoun in this sentence.