Task: Question Answering
Input (English): Question: If the average costs of three colors of 20,40,60 chocolates respectively is 10,15,20 what is the average costs of all the chocolates?

 Option A: 12.22

 Option B: 13.33

 Option C: 14.44

 Option D: 15.55

 Option E: 16.66
Output (English): Option E