Answer:
The correct answer is - Argument against the person, circumstantial.
Step-by-step explanation:
According to the given information, Mrs. Goldstone is using a debating technique. In this technique, one attacks the argument of the opposition instead of focusing on the actual matter or substance of the same.
The technique Mrs. Goldstone using is one of the fastest techniques to win the audience. In this, it is circumstantial which means pointing indirectly towards someone's guilt but not conclusively prove it.