user
the person who invented it does not need it.   the person who brought it does not want it.   the person who needs it doesen't know it    what is it?
A: savant
B: ethel barrymore
C: coffen
D: essor
E: winker
assistant
<|begin_of_thought|>

Deep Thought is thinking for 7.5 million years.

<|end_of_thought|>

<|begin_of_solution|>

C

<|end_of_solution|>