Hey there!
First, make sure you know what an abstract noun is.
Abstract Noun-<span>a noun denoting an idea, quality, or state rather than a concrete object.
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In this case, the answer is D(Logic is easily understood)
I believe they would consider the mood, tone, and <span>connotation</span>.
The meaning of cryptic in this sentence is - mysterious
One of the answers that could fit in the blank is better.
Hope this clarifies your doubt.
Answer:
Clarisse McClellan is Montag's intuitive teenage neighbor, who befriends him one day on his way home from work. One could argue that Clarisse is motivated to express her inherent human desire to socialize and enjoy nature. At the end of her brief conversation with Montag, Clarisse asks him if he is happy.