In Java Programming Language

Given an interface called Hil with the following two methods: public String present(); public void doWork(int i); and the following class: public abstract class HiAb implements Hil { public abstract void abMeth(String s); public void doWork(int i) {...} } Which of the following is true? a. The class itself will present an error since it did not implement public String present(). b. The following code will work without error: Hil h = new HiAb(); O c. The following code will work without error: Hil h = new Hil(); d. The following code will work without error: HiAb h = new Hil(); e. None of the above is true