Enthuware

In this question the correct answer is B but maybe I've not understand something.

The answer say

It will compile if class BankAccount is marked abstract.

but we have and, by definition, an abstract class can never be instantiated.

Is it correct?

Regards

You are right. This is a mistake. The option has been changed to "It will compile if class BankAccount provides an implementation for getId method."

thank you for your feedback!
Paul.