Task: Question Answering
Input (English): Question: On a sum of money, the S.I. for 2 years is Rs. 660, while the C.I. is Rs. 696.30, the rate of interest being the same in both the cases. The rate of interest is?

 Option A: 10%

 Option B: 10.5%

 Option C: 12%

 Option D: 13%

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