user
There is a house.  A person enters this house blind but exits it seeing.  What is it?
A: wiring
B: descendant
C: school
D: janitor
E: type
assistant
<|begin_of_thought|>

Deep Thought is thinking for 7.5 million years.

<|end_of_thought|>

<|begin_of_solution|>

C

<|end_of_solution|>