import java.awt.*；   public class X extends Frame {   public static void main （String args） {   X x = new X（）；   x.pack（）；   x.setVisible（true）；   }  public X（） {   setLayout （new BordrLayout（））；   Panel p = new Panel （）；   add（p， BorderLayout.NORTH）；   Button b = new Button （“North”）；   p.add（b）：   Button b = new Button （“South”）；   add（b1， BorderLayout.SOUTH）：   }   }   Which two statements are true？（）

A.The buttons labeled “North” and “South” will have the same width.

B.The buttons labeled “North” and “South” will have the same height.

C.The height of the button labeled “North” can very if the Frame is resized.

D.The height of the button labeled “South” can very if the Frame is resized.

E.The width of the button labeled “North” is constant even if the Frame is resized.

F.The width of the button labeled “South” is constant even if the Frame is resized.