 
<prompt> context: Kai loved the piano, and always played it to practice for concerts, even though some people said it was a waste of time. 
 Question: Why did Kai do this? 
A. Sell the piano and buy a set of tools B. Play an instrument that they loved C. keep practicing 
Refer to the context provided to answer the question that follows: <response>: B. Play an instrument that they loved 