Gosh, what a silly exam question! They're not all like that, are they?
This looks like an example of a degenerate case. Normally, an "is a" relationship is between two different classes. But the degenerate case is where the two classes are the same: "Dog is a Dog", for example. Such a degenerate case is handled correctly by Java, as in "instanceof" operator.
Dog instanceof Animal --> true Dog instanceof Dog --> true Dog instanceof Cat --> false
Betty Rubble? Well, I would go with Betty... but I'd be thinking of Wilma.