an author uses conflicting evidence in an argument to\nshow emotion.\nuse logical reasoning.\nemphasize…

Brief Explanations:

When an author presents conflicting evidence in an argument, it is often to undermine opposing viewpoints. By showing evidence that goes against counterclaims, the author can make their own argument stronger. It is not about showing emotion, using logical reasoning in the sense presented here, or emphasizing repetition.

Answer:

disprove counterclaims.