Given the following code, what will be the result of the output?

public static void main(String[] args)
{
    ArrayList<Integer> num = new ArrayList<Integer>();
    num.add(5);
    num.add(7);
    num.add(4);

    System.out.println(search(num, 4));
}

public static int search(ArrayList<Integer> array, int target){
    for(int i = 0; i < array.size(); i++){
        int elem = array.get(i);
        if(elem == target)
        {
            return i;
        }
    }
    return -1;
}

1. Correct Answer
   Incorrect Answer
   a

   4

2. Correct Answer
   Incorrect Answer
   b

   3

3. Correct Answer
   Incorrect Answer
   c

   2

4. Correct Answer
   Incorrect Answer
   d

   0

5. Correct Answer
   Incorrect Answer
   e

   -1