In which of the following sentences does the author use sarcasm to make a point?

A. "They really thought that the very air was thick with these enemies of man."
B. "There was no impossibility for which someone was not tried and convicted."
C. "We must not forget that some of our people are yet in the same intelligent business.
D. "Humanity is the great sea, and these creeds, and books, and religions, are
but the waves of a day."