Ethos is a Greek word meaning "character" that is used to describe the guiding beliefs or ideals that characterize a community, nation, or ideology. So first you have to define the belief you want to project, then I suggest you show it through action
Answer:
C. He believes Douglass would be threatening if he knew how to read.
Explanation:
I'm big brain, and I took the test.
A democracy functions best when an educated citizenry votes and makes decisions based on facts and readily available information.