Question

the main purpose of an argumentative essay is to
○ antagonize your readers.
○ voice your opinion on personal matters.
○ explain facts and statistics from varied sources.
○ persuade readers to agree with your viewpoint.

Explanation:

An argumentative essay's core goal is to present a viewpoint and use evidence/reasoning to persuade readers to accept it. "Antagonize" is not a purpose. Voicing personal opinions on personal matters is more for personal essays. Explaining facts/statistics is expository. So the correct choice is the one about persuading readers.

Answer:

D. persuade readers to agree with your viewpoint.