The correct order of ionic radii of $$\text{Rb}^+$$, $$\text{Br}^-$$, $$\text{Sr}^{2+}$$ and $$\text{Se}^{2-}$$ is

A

$$\text{Rb}^+ < \text{Br}^- < \text{Sr}^{2+} < \text{Se}^{2-}$$

B

$$\text{Sr}^{2+} < \text{Rb}^+ < \text{Br}^- < \text{Se}^{2-}$$

C

$$\text{Se}^{2-} < \text{Br}^- < \text{Sr}^{2+} < \text{Rb}^+$$

D

$$\text{Se}^{2-} < \text{Sr}^{2+} < \text{Rb}^+ < \text{Br}^-$$