Which slide has the best contrast?

Please help me

Id say the white background with the black writing so the last one

Explanation:

in this passage from "animal farm", by george orwell, the statement that best explains how boxer's response supports the author's purpose in writing an allegory is option b) orwell uses boxer's decision to avoid more carnage by working hard to show how the working class was manipulated. boxer and the other animals feel they are responsible for their carnage because napoleon uses propaganda to manipulate the animals of the farm.

explanation:

b. failure at least that one seems the most negative out of all of the answers provided pls correct me if i'm wrong. : ))