Consider Figure $5.$ The code does not compile. Which of the fo lines will make the code compile?

$($a$)$ The first line of public A $($int $x)$ should be super $(x)$;

$($b$)$ The first line of public B$.($int $x)$ should be super $($x$)$;$.$

$($c$)$ B needs a defaul constructor.

$($d$)$ Either $($b$)$ or $($c$)$ will fix the problem.

$($e$)$ Remove this from the constructor of $B.$