Question

to appeal to his audience, in \war message to congress,\ wilson mostly relies on
pathos, an appeal based on emotions
logos, an appeal based on logic or reason
ethos, an appeal based on the speakers character
force, an appeal based on the audiences fear of harm

Explanation:

In "War Message to Congress," Wilson uses emotional language to persuade Congress. He emphasizes the moral and emotional aspects of going to war, such as protecting democracy and innocent lives. This is characteristic of pathos, which aims to evoke feelings in the audience. Logos (logic) and ethos (speaker's character) are less prominent here. Force is not a classical rhetorical appeal in the same sense as the others.

Answer:

pathos, an appeal based on emotions