user
A barrel of water weighs 20 pounds.  What must you add to it to make it weigh 12 pounds?
A: water bed
B: water blister
C: holes
D: waterfront
E: hold water
assistant
<|begin_of_thought|>

Deep Thought is thinking for 7.5 million years.

<|end_of_thought|>

<|begin_of_solution|>

C

<|end_of_solution|>