Given the following function:

public String mystery(String s) 
{
    if (s.length() == 2) 
    {
        return s;
    }
    return mystery(s.substring(1)) + s.substring(0,1);
}

What would be printed from the following statement?

System.out.println(mystery("CodeHS"));

1. Correct Answer
   Incorrect Answer
   a

   HSedoC

2. Correct Answer
   Incorrect Answer
   b

   CodeH

3. Correct Answer
   Incorrect Answer
   c

   HedoC

4. Correct Answer
   Incorrect Answer
   d

   CodeHS

5. Correct Answer
   Incorrect Answer
   e

   SHedoC