user
what has 2 holes, 4 pegs, and a scroll, hair going left to right, and a spike which i not very light
A: reading
B: cello or double bass
C: prosthesis
D: side
E: flood
assistant
<|begin_of_thought|>

Deep Thought is thinking for 7.5 million years.

<|end_of_thought|>

<|begin_of_solution|>

B

<|end_of_solution|>