user
To you, rude would I never be,  Though I flag my tongue for all to see.    What am I?
A: nerve
B: dog
C: white
D: paving stone
E: standard
assistant
<|begin_of_thought|>

Deep Thought is thinking for 7.5 million years.

<|end_of_thought|>

<|begin_of_solution|>

B

<|end_of_solution|>