Which story uses it's boldfaced module vocabulary term correctly? a: i argument him until he finally gave in, and i won! b: her argumentative nature caused everyone else to avoid her. c: the argumenting between them eventually led to a divorce. d: our friendship argumentably the best i've ever had.

B: Her argumentative nature caused everyone else to avoid her.

In this sentence the adjective form of argument is being used correctly describing the noun, nature.
In the other sentences the wrong form of argument is being used. In option A the noun form is being used as a verb. Option C needs the noun form.Option D is the adverb form but there is no verb in the sentence.