The compound interest on a sum at a certain rate per annum compounded annually for 2 years is Rs.832 and the simple interest on the same sum for the same period and at the same rate of interest is Rs.800. The difference in the compound interest and simple interest for a period of 3 years would be:

A

Rs.99.48

B

Rs.66.52

C

Rs.48.00

D

Rs.98.56