1. (6) Assume the following program was interpreted using static-scoping rules. What value of x, y and z are in function sub2? Under dynamic-scoping rules, what value of x, y and z are displayed in function sub2?

function sub() {

function sub1() {

int x = 3;

y = 7;

sub2();

}

function sub2() {

int z = x + y;

}

int x = 2;

int y = 3;

sub1();

}