Which of the following would be the most effective way for the author of a persuasive text to refute an opposing viewpoint?

O restating the original argument in even stronger terms
O telling readers that the opposing viewpoint simply has no support
O providing statistics that contradict the opposing viewpoint
O pointing out that the opposing viewpoint is biased

2 answers

providing statistics that contradict the opposing viewpoint
@PsyDAG is right :)