What will this code return given checkMethod(false, false)?

public int checkMethod(boolean x, boolean y)
{
    if(!x)
    {
        if(y)
        {
            return 0;
        }
        else
        {
            return -1;
        }
    }
    else
    {
        if(y)
        {
             return 1;
        }
        else
        {
              return 2;
        }
    }
}

1. Correct Answer
   Incorrect Answer
   a

   0

2. Correct Answer
   Incorrect Answer
   b

   -1

3. Correct Answer
   Incorrect Answer
   c

   1

4. Correct Answer
   Incorrect Answer
   d

   2

5. Correct Answer
   Incorrect Answer
   e

   This method call will error.