Which series is correctly arranged in order of decreasing radius?

A.     ${\text{A}}{{\text{l}}^{3 + }} > {\text{M}}{{\text{g}}^{2 + }} > {\text{N}}{{\text{a}}^ + } > {{\text{F}}^ - }$

B.     ${{\text{F}}^ - } > {\text{N}}{{\text{a}}^ + } > {\text{M}}{{\text{g}}^{2 + }} > {\text{A}}{{\text{l}}^{3 + }}$

C.     ${{\text{F}}^ - } > {\text{A}}{{\text{l}}^{3 + }} > {\text{M}}{{\text{g}}^{2 + }} > {\text{N}}{{\text{a}}^ + }$

D.     ${\text{N}}{{\text{a}}^ + } > {\text{M}}{{\text{g}}^{2 + }} > {\text{A}}{{\text{l}}^{3 + }} > {{\text{F}}^ - }$

B