Let's say that a clock is broken, so stuck on the time 6:15. While most of the day, that clock is incorrect, it is correct at 6:15 AM and 6:15 PM, thus it is right twice a day.
Is there anything else that goes with this question?
<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>