Which one of the following sets correctly represents the increase in the paramagnetic property of the ions ?

$$\begin{gathered} {\mathrm{Cu}}^{2+}: 4s^{0}3{\mathrm{d}}^9, \mathrm{n}=1 \\ {\mathrm{V}}^{2+}: 4{\mathrm{s}}^{0}3{\mathrm{d}}^3, \mathrm{n}=3 \\ {\mathrm{Cr}}^{2+}: 4s^{0}3{\mathrm{d}}^4, \mathrm{n}=4 \\ {\mathrm{Mn}}^{2+}: 4s^{0}3{\mathrm{d}}^5, \mathrm{n}=5 \end{gathered}$$

Where, n= no. of unpaired electrons.

As $\mathrm{n}\uparrow \mathrm{paramagnetic} \mathrm{property}\uparrow$