Task: Question Answering
Input (English): Question: A person lent a certain sum of money at 5% per annum at simple interest and in 8 years the interest amounted to $420 less than the sum lent. What was the sum lent?

 Option A: 500

 Option B: 600

 Option C: 700

 Option D: 800

 Option E: 900
Output (English): Option C