What follows is a C program.

# include

int a;

int bar$($int x$,$ int y$)$

$\{$

int b;

return b $=$ x$+$y;

$\}$

int main$()$

$\{$ int $*$p;

p $=($int $*)$ malloc $($sizeof$($int$))$;

$*$p $=$ bar $(8,9)$;

$\}$In the above program,

$($i$)$which variables are static variables?

$($ii$)$ Which variables are stack dynamic variables?

$($iii$)$ And which variables are explicit$-$heap dynamic variables?