The correct answer is B) The counterclaim shows how the opposing opinion is incorrect.
A counterclaim helps support the writer position in an argumentative essay because The counterclaim shows how the opposing opinion is incorrect.
When someone is writing an essay, there is an argument and there is a counterclaim for that argument, which means that the writer affirms something that should be supported with valid information, dates, numbers or history. The counterclaim is an argument that opposes the original affirmation. This counterclaim should also be backed by data, dates, numbers in order to demonstrate its validity. That is why he counterclaim shows how the opposing opinion is incorrect.