There are three elements A, B, C. Their atomic number are `Z_(1),Z_(2)andZ_(3)` respectively. If `Z_(1)-Z_(2)=2and(Z_(1)+Z_(2))/2=Z_(3)-2` and the electronic configuration of element A is `[Ar]3d^(6)4s^(2)` then the correct order of magnetic moment of

Options

A. `B^(2+)gtA^(2+)gtC^(2+)`
B. `A^(3+)gtB^(3+)gtC`
C. `BgtAgtC^(2+)`
D. `B=A^(3+)gtC^(3+)`