A sum lent at simple interest amounts to ₹6,240.80 in one year and to ₹7,563.20 in 4 years. The sum (in ₹) and the rate of interest per annum, respectively, are:

A

6,200, 8.5%

B

5,800, 8.5%

C

5,800, 7.6%

D

6,200, 7.6%