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Considering the following JavaScript program, list all the variables, along with the functions where they are declared, that are visible in the bodies of Sub1, Sub2 and Sub3, assuming static scoping is used.

function Big() { var X, Y, Z;

function Sub1() { var A, Y, Z;

...

} function Sub2() {

var A, X, W; function Sub3() {

var A, B, Z;

...

}

...

}

...

}