Task: Question Answering
Input (English): Question: A man gets a simple interest of Rs.1000 on a certain principal at the rate of 5% p.a in two years. Find the compound interest the man will get on twice the principal in two years at the same rate.

 Option A: Rs.500

 Option B: Rs.250

 Option C: Rs.5012.50

 Option D: Rs.512.5

 Option E: None of these.
Output (English): Option D