Which of the following has the highest polarising power?

Given below are two statements:
Statement $I$: The correct order in terms of bond dissociation enthalpy is $Cl_{2} > Br_{2} > F_{2} > I_{2}$.
Statement $II$: The correct trend in the covalent character of the metal halides is $[SnCl_{4} > SnCl_{2}]$, $[PbCl_{4} > PbCl_{2}]$ and $[UF_{4} > UF_{6}]$.
In the light of the above statements, choose the correct answer from the options given below:

Which of the following order is incorrect?

Which of the following orders is incorrect?

Which of the following orders is incorrect?

Iron exhibits $+2$ and $+3$ oxidation states. Which of the following statements about iron is incorrect?