The compound interest on a certain sum at a certain rate percentage p.a. for the second year and third year are Rs. 3,960 and Rs. 4,356 respectively. What sum is the amount of the same sum at the rate in \(2\frac{1}{2}\) years, interest compounded annually?

• A. Rs. 43,560
• B. Rs. 43,650
• C. Rs. 45,837
• D. Rs. 45,738