Given the following method within the KWLinkedList class, what does it do? Assume that the size of the list is at least 2.

public boolean undefined()

{

E item1, item 2;

Node p1 = head;

Node p2 = tail;

for(int i = 0; i < size/2; i++)

{

item1 = p1.data;

item2 = p2.data;

if ( ! item1.equals( item2 ) )

return true;

p1 = p1.next;

p2 = p2.prev;

}

return false;

}

	a.	The method will return true, if the first and last elements are same.
	b.	The method will return true, if the list does not contain duplicate elements.
	c.	The method will return true, if the list is not same in forward and reverse directions.
	d.	The method will return true, if the list is same in forward and reverse directions.