Louis was a scoundrel __________ everyone distrusted.
a) whom
b) who
You need the object form of this pronoun.
http://web.ku.edu/~edit/whom.html
whom
The correct answer is b) who.
To determine the correct answer, we need to identify the role of the relative pronoun within the sentence. In this case, the relative pronoun is introducing a relative clause that provides additional information about the noun "Louis." The relative clause "whom everyone distrusted" describes Louis as the person who is being distrusted.
The word "whom" is an object pronoun used to refer to the object of a verb or preposition. However, in this sentence, we need a subject pronoun to refer to Louis, who is the person performing the action of being distrusted. Therefore, the pronoun "who" is the correct choice.
So, the sentence should be corrected to: "Louis was a scoundrel who everyone distrusted."