Which of the following is correct regarding the electron affinity of halogens?

Select the process in which the least enthalpy change is associated:

The second electron gain enthalpy of an element:

The increasing order of electron affinity for the given electronic configurations of elements is:
$I$. $1s^2 \ 2s^2 \ 2p^6 \ 3s^2 \ 3p^5$ $(Cl)$
$II$. $1s^2 \ 2s^2 \ 2p^3$ $(N)$
$III$. $1s^2 \ 2s^2 \ 2p^5$ $(F)$
$IV$. $1s^2 \ 2s^2 \ 2p^6 \ 3s^2 \ 3p^1$ $(Al)$

Increasing order of electron affinity is :-

Correct order of electron affinity for $C$,$Si$,and $Ge$ is