What will be the output of the following Java program?

import java.util.*;
class Collection_Algos 
{
    public static void main(String args[]) 
    {
        LinkedList list = new LinkedList();
        list.add(new Integer(2));
        list.add(new Integer(8));
        list.add(new Integer(5));
        list.add(new Integer(1));
        Iterator i = list.iterator();
        Collections.reverse(list);
  while(i.hasNext())
      System.out.print(i.next() + " ");
    }
}

A. 2 8 5 1

B. 1 5 8 2

C. 2

D. 2 1 8 5

Answer: Option B