Final answer:
Antony uses pathos by stirring emotions and ethos by questioning the honor of Brutus and Cassius in a subtle manner, both of which are effective in persuading the citizens of Rome.
Step-by-step explanation:
In Julius Caesar Act III, Scene ii, two primary rhetorical appeals used by Antony are pathos and ethos. Antony employs pathos when he manipulates the emotions of the crowd, suggesting their hearts would be inflamed if they knew how much Caesar cared for them. This use of emotional appeal is meant to stir the citizens against the conspirators. Antony also uses ethos when he refers to Brutus and Cassius as 'honourable men'. Although he repeats this phrase, the irony indicates that he questions their honor without stating it outright, thereby appealing to his own credibility and the citizens' trust without directly attacking them.
The effectiveness of pathos is in its ability to make the crowd feel pity and anger on behalf of Caesar, rallying them to Antony's side. The effectiveness of ethos lies in its subtlety; Antony maintains his credibility while casting doubt on Brutus and Cassius, which makes the audience more receptive to his message.