user
I can be long or short, i can be thick or thin, i can be red or white, and i'll always fit right.  What am I?
A: white paper
B: tampon
C: white sheep
D: thick
E: sheet of paper
assistant
<|begin_of_thought|>

Deep Thought is thinking for 7.5 million years.

<|end_of_thought|>

<|begin_of_solution|>

B

<|end_of_solution|>