user
Why didn't the car u-turn when it was supposed to?
A: horseless carriage
B: tool
C: cabin car
D: it was a oneway road
E: straight road
assistant
<|begin_of_thought|>

Deep Thought is thinking for 7.5 million years.

<|end_of_thought|>

<|begin_of_solution|>

D

<|end_of_solution|>