Java quiz. What will be the following code execution result?

What will be the following code execution result?


class HashTest {
    private static Set<String> set = new LinkedHashSet<String>();
    public static void main(String[] args) {
        set.add("one");
        set.add("two");
        set.add("three");
        set.add("two");
        for (String string : set) {
            System.out.print(string + " ");
        }
    } 
}

one two three two
one two three
one three two
None of the above

Explanation

LinkedHashSet remembers the order of the elements insertion. As the entities are added to the table they are linked to a bidirectional linked list.
Iterator will iterate through its values in the order in which they were inserted.