PartII$(8$points$)$

int counter $=0$;

void handler$($int sig$)$

$\{$

counter $++$;

$\}$

int main$()$

$\{$

int i;

signal$($SIGCHLD$,$ handler$)$;

for $($i $=0$; i $<5$; i $++)\{$

if $($fork$()==0)\{$

exit$(0)$;

$\}$

$\}$

$/*$ wait for all children to die $*/$

while $($wait$($NULL$)!=-1)$;

printf$("$counter $=\%$d

$",$ counter$)$;

return $0$;

$\}$

A$.$ Does the program output the same value of counter every time we run it$?$ Yes No

B$.$ If the answerto Ais Yes, indicate the value of the counter variable. Otherwise, list all possible values

of the counter variable.

Answer: counter $=$