Implementing the Iterable interface

Question

I just found this exam question in an old exam paper and am readying myself for an upcoming exam. I cannot figure it out :

The following depicts a contrived partial

Answer 1

private class PartialIterableClass implements Iterable {
    private String[] things;
    public PartialIterableClass( String[] things ){
        this.things = things;
    }

    @Override
    public Iterator iterator() {
        return Arrays.asList(things).iterator();
    }
}