The present value of a piece of land is Rs. 2x. If the value of the land increases at the rate of `2r%` per annum, then after `2n` after years the value of the land will be
A. `Rs.x(1+r/100)^(n)`
B. `Rs. 2x(1+(2r)/50)^(2n)`
C. `Rs. 2x(1+r/50)^(2n)`
D. `Rs. 2x(1+r/100)^(2n)`
