Spot the preposition error in this formal sentence: Professor Malik, to who the award was presented, thanked the committee. Which revision is standard?
Professor Malik, who the award was presented, thanked the committee.
Professor Malik, to that the award was presented, thanked the committee.
Professor Malik, to whom the award was presented, thanked the committee.✓Correct answer
Professor Malik, whom the award was presented to him, thanked the committee.
Explanation
Whom is the required form after the fronted preposition to, and it stands for Professor Malik within the clause. Who cannot follow to in this formal structure, while adding him would duplicate the same referent.