Answer: B. Excitement.
Step-by-step explanation: The tone of a text or a story is the author's attitude towards the subject, the audience or even a character of the written work. There are many kinds of tones like positive, negative, happy, sad, angry, fearful, etc. In the given line from Patrick Henry's speech we can see that the speaker is talking about going to a field of battle, and his tone appeals to the primary emotion of excitement.