From p. 121 of our textbook:

Based on the most current and most recently revised version of your working thesis, write a brief essay (of around 750 words) where you identify, explain, and answer the antithesis to your position. Specifically,

present at least two opposing viewpoints to your thesis
along with corresponding counterarguments for each
Keep in mind that the main goal of this essay is to think about an audience of readers who might not agree with you and to answer at least some of the questions and complaints they might have about your research project.

Be sure to include textual evidence about both the antithesis and your working thesis, and be sure to answer the objections hostile readers might have.