Task: Question Answering
Input (English): Question: A began business with 12500 and is joined afterwards by B with 50000. When did B join, if the profits at the end of the year are divided equally?

 Option A: 8 months

 Option B: 9 months

 Option C: 10 months

 Option D: 7 months

 Option E: None of these
Output (English): Option B