Answer: B. When you find yourself agreeing with a counterclaim that is made by your opponent.
In an argumentative essay, an author takes a particular position and tries to defend it using logical arguments. His position is his "claim." A "counterclaim" would be an opposite position that someone else is defending. If you are writing an essay, and you find yourself agreeing with the counterclaim, it is a good idea to consider modifying your claim. It is possible that your claim is not as strong as you previously thought, or that you have changed your mind.
