If the constant of gravitation `(G)` , Planck's constant `(h)` and the velocity of light `(c)` be chosen as fundamental units. The dimension of the radius of gyration is

Options

A. `h^(1//2)c^(-3//2)G^(1//2)`
B. `h^(1//2)c^(3//2)G^(1//2)`
C. `h^(1//2)c^(-3//2)G^(-1//2)`
D. `h^(-1//2)c^(-3//2)G^(1//2)`

Answer

A