I'd like to buy a house-modern, comfortable, and____, in a quite neighborhood.[ ]

A. in all      

B. above all        

C. after all            

D. at all

设有如下程序： import java.util.*; public class Sun { public static void main (String args[ ]) {int score;String a;Random r=new Random ();score=r.nextInt (4)+5;switch(score){case 0:a="E";break;case 1:a="D";break;case 2:a="C";break;case 3:a="B";break;default:a="A";} System.out.println (A) ; } } 程序运行的结果是( )。

A．a="A"

B．a="E" a="A"

C．a="E"

D．a="C"