He is appealing to the audience's emotions by using language with strong connotations such as “revolting barbarity” and “shameless hypocrisy” to condemn the United States and shame his audience.
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.
D.
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