What is the output of the following code:

int main$()$

$\{$

int $x=5$;

if $($fork $()==0)$

X$++$;

else

$x--$ ;

printf$("\%$d$\backslash$t$",$ x$)$;$//$print value of $x$

return $o.$;

$\}$

Select one:

a$.64$ or $46$

b$.5$

c$.6$

d$.4$