Question

Which phrase can be used to describe author's purpose in an argument?

Answer 1

Answer:

Prove a position

Explanation:

An author's purpose in an argument is to "prove a position." In order to do this, he tries to persuade the readers by providing evidence which supports his claim or position. It makes his stance clear by providing statements that will support his point-of-view. This is often used in "controversial issues."

So, this explains the answer.