C. is the correct answer.
C is the only answer choice that refers to the future ("a sign, he said, a sign"). The rest of the answers refer to things happening in the present in the story, with almost no reference to the future of the plot.
D. thesis would be my answer
CONTEXT CLUES: Apathy, frugal,
PREFIX: Politician, dependable
SUFFIX:triathlete
Answer: What was the real significance of the election of 1964?
Explanation: