Answer:
When writing a restrictive clause, introduce it with the word "that" and no comma. However, if the subject is or was a human being, use "who" to introduce the clause. When talking about people in defining (restrictive) relative clauses, who is preferred to that.
The answer is A because it shows the main idea there.
Answer:
the answer is D
Explanation:
the claim is like something you are stating ,your point of view.