The main reason Harrison Bergeron is considered a threat in the eponymously titled short story is that he is able to rip off of his handicaps and make himself the self-proclaimed "Emperor," thereby removing control of the authoritarian regime that needs all of its citizens to weaken themselves and obey government commands.
The correct answer is A.
Antony reminds the plebeian listeners about all the good things that Caesar had done for them, lest they be forgotten. He confirms Brutus' accusations against Caesar that he was too ambitious, but at the same time refutes them, illustrating Caesar's modesty and common sense with a couple of examples. With this, Antony pays respect to his murdered friend, but also prepares the ground for his own political ascent, by cunningly denouncing the conspirators.