user
A woman is sitting in her room at night.  She has no lights on, no candle, no lamp, no light at all and yet she is reading.  How is that possible?
A: literacy
B: light bulb
C: sign
D: she is reading braille
E: story
assistant
<|begin_of_thought|>

Deep Thought is thinking for 7.5 million years.

<|end_of_thought|>

<|begin_of_solution|>

D

<|end_of_solution|>