Read the sentence.

an expert in organ transplants, the chief surgeon of the hospital routinely spoke at conferences.
(an expert in organ transplants is underlined )
the underlined portion of the sentence is known as a(n)

a. appositive
b. relative clause
c. restrictive phrase
d. restrictive clause

appositive is the answer

a. the scene is structured as a dialogue between two characters in their own informal language.

for me, i'd go with (c) satisfied or (b) overjoyed because if you read it a couple of times, it makes since that it is c or b. it can't b (a) angry because booker was never angry about anything. at the end of the paragraph, booker states, "i think there are not many men in our country who have had the privilege of naming themselves in the way that i " i think that sentence kind of gives away the also, some words in the paragraph can also you like for example, "indulged," "calmly," "perplexity," "privilege," and defining words that you don't know, can you understand more of that paragraph and it can also increase your comprehension. : )

i'm really rally sorry if i'm incorrect, but if i'm hope this ! : )