A cenain sum amounts to ₹9,900 in 4 years and to ₹11,700 in 7 years at the same rate per cent per annum at simple interest. What will be the amount (in ₹) of the same sum at $$9\frac{2}{3}\%$$ for $$2\frac{1}{4}$$ years at simple interest?

A

9,541.50

B

9,165.75

C

10,000.00

D

9,131.25