user
There is a kind of fish that can never swim.  What is that?
A: transport
B: structure
C: dead fish
D: lake superior
E: trawler
assistant
<|begin_of_thought|>

Deep Thought is thinking for 7.5 million years.

<|end_of_thought|>

<|begin_of_solution|>

C

<|end_of_solution|>