user
What if you where in a completely blue house with only one story or level of the house, what color are the stairs??
A: aviary
B: cairn island
C: spiral stairwell
D: there are no stairs
E: no windows
assistant
<|begin_of_thought|>

Deep Thought is thinking for 7.5 million years.

<|end_of_thought|>

<|begin_of_solution|>

D

<|end_of_solution|>