When 'do stuff' is reached, how many objects will be eligible for garbage collection? : Questions « Utility Classes « SCJP

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class Beta { }
class Alpha {
    static Beta b1;
    Beta b2;
}

public class MainClass {
    public static void main(String[] args) {
     Beta b1 = new Beta();     Beta b2 = new Beta();
     Alpha a1 = new Alpha();   Alpha a2 = new Alpha();
     a1.b1 = b1;
     a1.b2 = b1;
     a2.b2 = b2;
     a1 = null;  b1 = null;  b2 = null;
     // do stuff
   }
}



A.  0
B.  1
C.  2
D.  3
E.  4
F.  5