Given below are two statements :
Statement (\(\mathbf{I}\)): The radius of isoelectronic species increases in the order.
\(\mathrm{Mg}^{2+} \lt \mathrm{Na}^{+} \lt \mathrm{F}^{-} \lt \mathrm{O}^{2-}\)
Statement (II): The magnitude of electron gain enthalpy of halogen decreases in the order.
\(\mathrm{Cl}\gt\mathrm{F}\gt\mathrm{Br}\gt\mathrm{I}\)
In the light of the above statements, choose the most appropriate answer from the options given below :

1. A Statement I is incorrect but Statement II is correct
2. B Statement I is correct but Statement II is incorrect
3. C Both Statement I and Statement II are incorrect
4. D Both Statement I and Statement II are correct