<span>D It is a moment of realization.
An epiphany is a moment when someone realizes something in an instant. In the passage it says that "Feld had a sudden insight." The sudden insight is his moment of realization that Sobel had made it clear to Miriam that he loves her.</span>
The answer is D. The other answers are improper. D is the only answer that makes sense.
A; because the narrator is usually a character in a story, who interacts with other characters.
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The subordinating conjunction in the sentence is though.
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