what is the best way for an author to address an opposing claim A by expanding why it is false B by ignoring it C by including evidence that supports it D by providing a counterargument to address it

The best way for an author to address an opposing claim is by providing a counterargument to address it (option D). By acknowledging and responding to the opposing claim, the author can show a comprehensive understanding of the topic and engage in a fair and balanced discussion. This demonstrates critical thinking and persuasive writing skills, as the author can refute the opposing claim with evidence, reasoning, and logic, ultimately strengthening their own argument.