Multiple Choice
Stephan is a surgeon. After 10 hours of looking into a surgical incision, he looks up at the white walls of the operating room and sees pinkish flashes of light. What is Stephan experiencing?
A) Fatigue of his red cones
B) Fatigue of his green cones
C) Negative afterimage
D) Fatigue of afterimages
Correct Answer:

Verified
Correct Answer:
Verified
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