Task: Question Answering
Input (English): Question: Ages of two persons differ by 4 years. If 3 years ago, the elder one was 3 times as old the younger one, find their present age

 Option A: 5,9

 Option B: 14,18

 Option C: 16,20

 Option D: 18,22

 Option E: 19,23
Output (English): Option A