public class X {   public static void main （String[]args）   {   string s = new string （“Hello”）；   modify（s）；   System.out.printIn（s）；   }   public static void modify （String s）  {   s += “world!”；      }   }      What is the result？（）    

• A、 The program runs and prints “Hello”
• B、 An error causes compilation to fail.
• C、 The program runs and prints “Hello world!”
• D、 The program runs but aborts with an exception.