Question

use relative pronouns: who, whom, whose, which, and that
complete the sentence with the best relative pronoun.
our human resources manager is quite enthusiastic about mia schmidt, made an
excellent first impression during the interview.

Explanation:

In this sentence, "Mia Schmidt" is a person. The relative pronoun "who" is used to refer to people and acts as the subject of the relative clause ("who made an excellent first impression during the interview"). "Whom" is used for objects, "whose" shows possession, "which" is for non - human things, and "that" can be used for both people and things but is less common in non - restrictive clauses (the comma before the blank indicates a non - restrictive clause here).

Answer:

who