The volume of a right circular cone, whose radius of the base is same as its altitude, and the volume of a sphere are equal. The ratio of the radius of the cone to the radius of the sphere is:

A

$$\sqrt[3]{3} : \sqrt[3]{2}$$

B

$$\sqrt{2} : 1$$

C

$$1 : 1$$

D

$$\sqrt[3]{4} : 1$$