What would be the output of the following program?

ArrayList<Integer> numbers = new ArrayList<Integer>();
numbers.add(6);
numbers.add(3);
numbers.add(2);
numbers.add(3);
numbers.remove(3);

for (int num : numbers)
{
    System.out.print(num + " ");
}

1. Correct Answer
   Incorrect Answer
   a

   6 2

2. Correct Answer
   Incorrect Answer
   b

   6 3 2

3. Correct Answer
   Incorrect Answer
   c

   6 2 3

4. Correct Answer
   Incorrect Answer
   d

   6 3 2 3

5. Correct Answer
   Incorrect Answer
   e

   6 3 3