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

An Appositive

(The underlined sentence is:  An expert in organ transplants,)

Explanation:

An Appositive is a noun or noun phrase placed alongside another noun in the sentence, for the purpose of providing additional information about it. In the sentence above, the Chief Surgeon is the noun in the sentence and the introductory sentence, which is the appositive sentence provides further details about the Surgeon.

He is described as an expert in organ transplants, so the reader knows that the surgeon is a seasoned professional. The appositive can sometimes be just a noun in the sentence. Some sentences would also not lose much of their meaning even if the appositive is removed.

the examples that saki used to represent satire through situational irony are options two (2) and five (5) inasmuch as the wolf thought that looking for a girl in the bushes could be as easy as hunting little pigs at the park, but it took him so much time to find the girl if it had not been not for a silly mistake. also, bertha would have survived to the wolf's hunt if she had not won those medals for goodness, which at the end they were what got her killed by making noise, so winning medals of goodness was not so good achievement, after all.