None of the answer given fits the questions " An argument may warrant additional support in the form of additional evidence when." A is not logical for the questions, C, is only an opinion by an expert and is not based on fact, and B doesn't fit. The correct answer is D.
Answer:
A. adjective clause
Explanation:
The function of the clause is to describe the person; thus, the clause functions as an adjective. An adjective describes a noun or a pronoun.
