public class X extends Frame{

public static void main(String[] args){

X x=new X();x.pack();x.setVisible(true);

}

public X(){

setLayout(new GridLayout(2,2));

Panel p1=new Panel(); add(p1);

Button b1=new Button("One"); p1.add(b1);

Panel p2=new Panel(); add(p2);

Button b2=new Button("Two"); p2.add(b2);

Button b3=new Button("Three"); p2.add(b3);

Button b4=new Button("Four"); add(b4);

}

}

when the frame. is resized, ()

A.all change height and width

B.Button Two change height and Button Three change width

C.Button One change height

D.Button Four change height and width