Using the values $\mathrm{F}$ $-328$, $\mathrm{Cl}$ $-349$, $\mathrm{Br}$ $-325$, $\mathrm{I}$ $-295$ (in $\mathrm{kJ}\mathrm{mo}{\mathrm{l}}^{-1}$), the order of decreasing magnitude of energy released on electron gain is

1. A$\mathrm{I}>\mathrm{Br}>\mathrm{Cl}>\mathrm{F}$
2. B$\mathrm{F}>\mathrm{Cl}>\mathrm{Br}>\mathrm{I}$
3. C$\mathrm{Cl}>\mathrm{Br}>\mathrm{F}>\mathrm{I}$
4. D$\mathrm{Cl}>\mathrm{F}>\mathrm{Br}>\mathrm{I}$