How to use Who or Whom?
The words who and whom are both pronouns You use who when you are referring to the subject of a clause and whom when you are referring to the object of a clause.
A simple memory trick - we'll call it the 'him-lich' maneuver. It's as easy as testing your sentence with the word him: if you can hypothetically answer your question with the word him, you need a whom.
Who/Whom do you love? You love him. Whom do you love?
0 Q, 109 A, 0 C