In Act 1, Cassius is trying to persuade Brutus against Caesar. This would make him a betrayer. It shows that Cassius is against Caesar in all ways possible. Especially when he saved Caesar and he acted like a little sick girl. Cassius's persuasion eventually wins over Brutus and that's why the outcome of Julius Caesar, was what it was.
The correct answer for this question would be C) Will have been throwing or the third option because the definition of verb is doing something and progressive is in progress, so like in motion, so that's why its C) because the person will have been is the progressive and throwing is the verb.
New York is the answer i think.