user
I open and latch shut, light and dark, creepy and calm, fierce frightening and warmth, enclosures inside of me.  Alive or not I store all things and often my mother is a fat lady like a store and I help you move, what am I?
A: relation
B: canine
C: steak
D: cat food
E: box
assistant
<|begin_of_thought|>

Deep Thought is thinking for 7.5 million years.

<|end_of_thought|>

<|begin_of_solution|>

E

<|end_of_solution|>