AD is the diameter of a circle with area 707 `m^(2)` and AB = BC = CD as shown in the figure above. All curves inside the circle are semicircles with their diameters on AD. What is the cost of levelling the shaded region at the rate of Rs. 63 per square metre?

Options

A. Rs. 29,700
B. Rs. 22,400
C. Rs. 14,847
D. None of the above