Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R

Assertion A : If the volumes of two cubes are in the ratio of 3 : 2 : 7 then their surface areas are in the ratio of 4 : 9.

Reason R : If the surface areas of two cubes are in the ratio $$S_{1} : S_{2}$$, then their volumes are in the ratio $$S_{1}^{2/3} : S_{2}^{2/3}$$

In the light of the above statements, choose the correct answer from the options given below :