If I'm not mistaken, it was Carla Mason (not sure tho)
The answer is B-
Mark Antony repeats that line to discredit Brutus by giving examples that prove that Caesar was not ambitious.
Here is an example for a paragraph : The task seemed very dubious, but she was ecstatic to do it. While doing the task, she encountered a wild dog. If she got hurt, her stepmother would be liable. The girl seemed very gullible.
No, I don't think it is a rhetorical device