Which work is an example of a satire?

A. A movie about two fish who discover the true meaning of giving when they are forced to leave the safety of their tank

B. A letter to the editor of a magazine, complaining about an article that you found to be offensive

C. A story about an arrogant businessman who learns about what is truly important after going on a great adventure

D. An article that proposes to ban all unnecessary breathing in order to draw attention to the problem of air pollution