Given the following method within the Queue, what does it do ?

public E Undefined()

{

int i = front;

for ( int j = 0; j < size - 1; j++ )

{

if (theData[i].equals(theData[(i + 1)%capacity]))

return theData[i];

else

i = (i + 1) % capacity;

}

return null;

}

	a.	It returns the value of the element if it equals to the element at the front.
	b.	It returns the value of the element if it equals to its next element in the queue.
	c.	It returns the value of the element if it equals to the element at rear.
	d.	It returns the value of the element if all the elements of the queue are same.