Why does Goines say he wrote a letter to the draft board?

Does this question have the following list of options to choose from?

to protest the war

to demonstrate his love of country

to prove his political activism

to ensure he would not get drafted

If so, then the answer would be the third one. Goines is using satire, a type of writing, making fun of human behavior to condemn it or find some social change. He uses this type of writing so as to have the people / reader think about the war more critically.