Question

What or whom does refer to here

Answer 1

Whom should be used to refer to the object of a verb or preposition.

Step-by-step explanation:

When in doubt, try this simple trick: If you can replace the word with “he”' or “'she,” use who. If you can replace it with “him” or “her,” use whom. ... Whom should be used to refer to the object of a verb or preposition.