class A {   public String toString （） {   return “4”；   }   }   class B extends A {   8. public String toString （） {   return super.toString（） + “3”；   }   }   public class Test {   public static void main（Stringargs） {   System.out.printIn（new B（））；   }   }   What is the result？（）  

• A、 Compilation succeeds and 4 is printed.
• B、 Compilation succeeds and 43 is printed.
• C、 An error on line 9 causes compilation to fail.
• D、 An error on line 14 causes compilation to fail.
• E、 Compilation succeeds but an exception is thrown at line 9.