Which elements in a period have the maximum and minimum ionization enthalpy?

Which is the correct order of second ionization potential of $C, N, O$ and $F$ in the following?

Which of the following electronic configurations represents a sudden large gap between the values of second and third ionisation energies of an element?

The second ionisation potential of $Li, Be,$ and $B$ follows the order:

The first $I.E.$ of $Na, Mg, Al$ and $Si$ are in the order:

Given below are two statements:
Statement $I$: The second ionization enthalpy of $B$, $Al$ and $Ga$ is in the order of $B > Al > Ga$.
Statement $II$: The correct order in terms of first ionization enthalpy is $Si < Ge < Pb < Sn$.