user
There is such an entity in the world that spends more time on the surface than any other.  Place is not a concern.  What is this entity?
A: map projection
B: personal business
C: timekeeper
D: fzer0slipper proning
E: importance
assistant
<|begin_of_thought|>

Deep Thought is thinking for 7.5 million years.

<|end_of_thought|>

<|begin_of_solution|>

D

<|end_of_solution|>