Task: Question Answering
Input (English): Question: A father said to his son, "I was as old as you are at present at the time of your birth." If the father's age is 38 years now, the son's age five years back was?

 Option A: 14yr

 Option B: 15yr

 Option C: 20yr

 Option D: 25yr

 Option E: 30yr
Output (English): Option A