Which phrase from Douglass' speech is an example of antithesis?
a. "...traced like a wounded man through a crowd, by the blood."
b. "... not complaining of the past, but simply asking for a better future...."
c. "... side by side in the loyal cause with our gallant and patriotic white soldiers..."
d. "... entailing border wars and troubles of unknown duration and incalculable calamity."