大神求助 为什么选D

  class Beverage {
     Beverage ()  {  System.out.print ("beverage ");  }
  }
   class Beer extends Beverage {
   public static void main(String [] args) {
       Beer b = new Beer (14) ;
   }
   public int Beer(int x) {
      this () ;
      System.out.print ("beerl") ;
   }
  public Beer() { System.out.print("beer2 "); }
 }  结果是什么?

     A. beerl beverage

     B. beer2 beverage

     C. beverage beer2 beerl

       D.编译失败