Task: Question Answering
Input (English): Question: The average runs scored by a batsman in 20 matches is 40. In the next 30 matches the batsman scored an average of 20 runs. Find his average in all the 50 matches?

 Option A: 31

 Option B: 46

 Option C: 28

 Option D: 13

 Option E: 12
Output (English): Option C