user
Before Mount Everest was discovered, what was the highest mountain on Earth?
A: australia
B: climber
C: mount everest
D: want
E: austria
assistant
<|begin_of_thought|>

Deep Thought is thinking for 7.5 million years.

<|end_of_thought|>

<|begin_of_solution|>

C

<|end_of_solution|>