The volume of the space inside a right circular conical tent is 
and its vertical height is 4 m. Then,
(i) Find the canvas required to make the tent.
(ii) The cost of canvas at the rate of Rs. 120 per m2.
A(i) - 125.38 m2; (ii) - Rs. 16642
B(i) - 124.28 m2; (ii) - Rs. 15164.42
C(i) - 126.38 m2; (ii) - Rs. 15165.60
D(i) - 122.48 m2; (ii) - Rs. 16344