Answer:
You use who when you are talking about the person that is doing something. You use whom when talking about the person that is receiving an action.
Explanation:
Who is used as a subject. Ex: <u>Who</u> wants to go to the party?
Whom is used as the object. Ex: I don't know with <u>whom </u>I will go to the party.
Answer:
I am almost positive that it is answer D
Explanation: