user
Sometimes I'm orange sometimes I'm white sometimes I'm red sometimes I'm light what am I?
A: birds
B: shining
C: hydrogen
D: moon  
E: white
assistant
<|begin_of_thought|>

Deep Thought is thinking for 7.5 million years.

<|end_of_thought|>

<|begin_of_solution|>

D

<|end_of_solution|>