1. package testpkg.p1; public class ParentUtil { public int x = 420; protected int doStuff() { return x; } } package testpkg.p2; import testpkg.p1.ParentUtil; public class ChildUtil extends ParentUtil { public static void main(String [] args) { new ChildUtil().callStuff(); } void callStuff() { System.out.print("this " + this.doStuff() ); / Line 18 / ParentUtil p = new ParentUtil(); System.out.print(" parent " + p.doStuff() ); / Line 20 / } } which statement is true?
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