Consider the following program :

$/*$

$*$ stack$-$frame$-$games.c

$*/$

int foo$($int x$)$;

int bar$($int y$)$;

int main$($int argc, char $*$argv$[])$

$\{$

int x $=10$;

x $=$ foo$($x$)$;

x $=$ bar$($x$)$;

return x;

$\}$

int foo$($int x$)$

$\{$

int z $=3$;

z $=$ z $*$ x;

return z;

$\}$

int bar$($int y$)$

$\{$

int a;

return a $+$ y;

$\}$

Draw the stack frames for$$foo$()$and$$bar$().$

Consider carefully how the program is executed and answer the following question:$$what is the value of$$x$$returned by$$main$()$and why?