Which of the following pairs represents isoelectronic ions?

Options

A. `Mn^(3+)` and `Fe^(2+)`
B. `Mn^(2+)` and `Fe^(3+)`
C. `Cr^(3+)` and `Mn^(2+)`
D. `Fe^(2+)` and `Co^(2+)`

Answer

C