Consider the following method:

public void mysteryMethod(ArrayList<Integer> array)
{
   int counter = 0;
   while(counter < array.size())
   {
        if(counter % 2 == 0)
        {
            array.set(counter, 1);
            counter++;
        }
        else
        {
            counter++;
        }
   }
}

Which of the following best describes what this method does?

1. Correct Answer
   Incorrect Answer
   a

   Traverses the array and multiplies each element by two

2. Correct Answer
   Incorrect Answer
   b

   Traverses the array and adds one to each element

3. Correct Answer
   Incorrect Answer
   c

   Traverses the array and replaces every element with the int 1

4. Correct Answer
   Incorrect Answer
   d

   Traverses the array and replaces every other element with the int 1

5. Correct Answer
   Incorrect Answer
   e

   Traverses the array and replaces every element with the value of counter