2021 ISSUE 02: Big Tech
If you can use the pronoun HE to answer the question, use WHO.
he = subject pronoun
Other subject pronouns: I You He She It We They
Who/Whom created the viral post that has over a million likes?
The subject is the person/object doing the action
If you can use the pronoun HIM to answer the question, use WHOM.
him = object pronoun
Other object pronouns: Me You Him Her It Us Them
Who/Whom should we choose as our next celebrity feature?
The object is the person/object receiving the action