If the curved surface area of a sphere with radius $$R_{1}$$ unit is the same as the total surface area of another hemisphere with radius $$R_{2}$$, then the $$R_{2}$$ is:

A

$$2R_{1}$$

B

$$\frac{2}{\sqrt{3}}R_{1}$$

C

$$\sqrt{3}R_{1}$$

D

same as $$R_{1}$$