user
I'm under your face, I'm outside your mind; A biological case, Pressure brings pain sometimes.  What am I?
A: their head
B: brainpan
C: cheek
D: feature
E: your skull
assistant
<|begin_of_thought|>

Deep Thought is thinking for 7.5 million years.

<|end_of_thought|>

<|begin_of_solution|>

E

<|end_of_solution|>