class A {   public int getNumber（int a） {   return a + 1；   }   }    class B extends A {   public int getNumber （int a） {   return a + 2   }    public static void main （String args） {   A a = new B（）；   System.out.printIn（a.getNumber（0））；   }   }   What is the result？ （） 

• A、 Compilation succeeds and 1 is printed.
• B、 Compilation succeeds and 2 is printed.
• C、 An error at line 8 causes compilation to fail.
• D、 An error at line 13 causes compilation to fail.
• E、 An error at line 14 causes compilation to fail.