The radius of inner most electron orbit of a hydrogen atom is $5.3 \times 10^{-11}\;m$ what are the radii of $n=2$ and $n=3$ orbits?

Question

$\begin{array}{1 1} r_1 = 2.12 \times 10^{-10}\;m,\; r_2 = 4.77 \times 10^{-10}\;m \\ r_1 = 4.77 \times 10^{-10}\;m,\; r_2 = 2.12 \times 10^{-10}\;m \\ r_1 = 2.12 \times 10^{-11}\;m,\; r_2 = 4.77 \times 10^{-11}\;m \\ r_1 = 4.77 \times 10^{-11}\;m,\; r_2 = 2.12 \times 10^{-10}\;m \end{array}$