The ionic radii (in A) of $NH^{3-},O^{2-}$ and $F^{-}$ are respectively:

Question

$\begin{array}{1 1} 1.36,1.40\;and\;1.71 \\ 1.36,1.71\;and\;1.40 \\1.71,1.40\;and\;1.36\\ 1.71,1.36\;and\;1.40 \end{array}$