Answer:
Confident
Step-by-step explanation:
In literature, the tone is the attitude of the writer or a character toward a topic or theme of the story or piece of writing. The tone is determined by word-choice, syntax and the author or character's writing style. In the excerpt provided, Antony uses a confident tone because he is full of conviction that he knows their enemies well and that, in reality, they are not as courageous and strong as they want to look like.