Will the following code compile?

abstract class A {

public int do_stuff1() {

return 3;

}

}

class B extends A {

@Override

public int do_stuff1() {

return 4;

}

public int do_stuff2() {

return 7;

}

}

class Main {

public static void main(String[] args) {

//Note the polymorphism:

A myB = new B();

myB.do_stuff1();

myB.do_stuff2();

}

}

No, class A is marked abstract, but has no abstract methods, and that is not allowed. No, class A has no do_stuff2() therefore you can't call do_stuff20 on myB in main. No, class A is abstract, so you can't call do_stuff10 even though there is an override in class B. Yes