Answer:
What is it? What is on your account?
Explanation:
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.
B) appealed to the common man, even opening up voting rights to Americans of average wealth and power
I pray for you because this looks hard
D) They can provide evidence to support the speaker
(i think Im not 100% sure though)