user
When liquid splashes me, none seeps through.  When I am moved alot, liquid I spew.  When I am hit, color I change.  And color, I come in quite a range.  What I cover is very complex, and I am very easy to flex.  What am I?
A: duke
B: rise
C: im skin
D: massif
E: fill
assistant
<|begin_of_thought|>

Deep Thought is thinking for 7.5 million years.

<|end_of_thought|>

<|begin_of_solution|>

C

<|end_of_solution|>