Draw the runtime stack for the following c++ program. (show any global variables and include main in the runtime stack) explain. i really struggle with these types of questions

use

retaddr for the return address

retval for the return value

na not used

#include

using namespace std;

int ounces;

void size(int& ou, int lbs) {

ou = lbs*16;

}

int main() {

int lbs;

cout < < "enter number of pounds";

cin > > lbs;

size(ounces, lbs);

cout < < "you have " < < ounces < < "ounces";

return 0;

}