A craft teacher reshapes the wax from a cylinder of candle with section diameter 6 cm and height 6 cm into a sphere. The radius of this sphere will be

A

$$r=6\sqrt{\frac32}\text{ cm}$$

B

$$r=6\text{ cm}$$

C

$$r=3\sqrt[3]{\frac32}\text{ cm}$$

D

$$r=6\sqrt[3]{2}\text{ cm}$$