I think the bolded words would be "whom Mr. Stein chose". The clause whom Mr. Stein chose is an example of an adjective because the clause describes the word student. Student is the subject of the sentence and is a noun. An adjective describes a noun or another subject. an adverb describes a verb or another adverb.
Answer:
Finch found and took a License Plate that was dented and nearly folded in half from the scene of the accident.
Cheers!
Answer:
Is this question from your text book??