user
when doyougo on red and stop on green?
A: whenyour eating a watermelon
B: when the sky is blue
C: short
D: utah
E: duck
assistant
<|begin_of_thought|>

Deep Thought is thinking for 7.5 million years.

<|end_of_thought|>

<|begin_of_solution|>

A

<|end_of_solution|>