In the following code, please note the missing sections labeled $?1$ and $?2.$

function $[$img$]=$ examQuestion $($n$)$

img $=$ zeros$($n$)$;

MaxDist $=?1$;

for i $=1$:n

for j $=1$:n

if i $==$ j

img$($i$,$j$)=0$;

else

distance $=?2$;

img$($i$,$j$)=255*$distance$/$MaxDist;

end

end

end

img $=$ uint$8($img$)$;

The output image will have pixel intensity scaled with its distance to diagonal $($where i and j are identical$),$ which of the following should replace the missing sections?

Group of answer choices

$?1$ should be n$-1,?2$ should be abs$($i$-$j$)$

$?1$ should be n$-1,?2$ should be i

$?1$ should be n$,?2$ should be $($i$+$j$)/2$

$?1$ should be n$,?2$ should abs$($i$-$j$)$