The answer is D. how he could support his family i just did the question.
LOL. As there is 26 letters in the alphabet there is no middle !
I believe you have a typo when it comes to the first option - it should be athletics, not athletic. The word athletic is an adjective, and the word athletics is a noun.
That being said, the correct answer is A. athletics. Even though this noun ends in -s, it is still singular. The rest of the options are all plural nouns.
The answer is B) it creates a disharmony that suggests strife in the ample nation.