user
If a red house is made of red brocks, and a blue house is made of blue bricks, what is a green  house made of?
A: passage
B: beanbag
C: greenhouse is made of glass
D: colour
E: exterior door
assistant
<|begin_of_thought|>

Deep Thought is thinking for 7.5 million years.

<|end_of_thought|>

<|begin_of_solution|>

C

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