user
There is a bomber plane flying through the air.  Nothing is wrong with this plane, everything works in perfection.    The bomb hatches open and the clamps that hold the bomb open to release but the bomb goes nowhere.  Why?
A: tool
B: chironomidae
C: insects
D: plane is upside down
E: bombs
assistant
<|begin_of_thought|>

Deep Thought is thinking for 7.5 million years.

<|end_of_thought|>

<|begin_of_solution|>

D

<|end_of_solution|>