user
Sometimes I am light, sometimes I am dark.   Most people like me.   What am I?
A: touch
B: taste
C: chocolate
D: fireplace
E: quality
assistant
<|begin_of_thought|>

Deep Thought is thinking for 7.5 million years.

<|end_of_thought|>

<|begin_of_solution|>

C

<|end_of_solution|>