Consdier the following program (as we discussed in the class). What value of x is displayed in function sub1? Select one best answer.

/* program begins here */ var x;

function sub1( ) {

document.write("x = " + x + "
");

}

function sub2( ) { var x;

x = 10;

sub1( );

}

x = 5;

sub2( );

/* program ends here */

5 with static scoping, 10 with dynamic scoping

10 with static scoping, 5 with dynamic scoping

5 with static or dynamic scoping

10 with static or dynamic scoping

undefined for static scoping

undefined with dynamic scoping