What will be the appearance of an applet with the following init（） method？   public void init（） {   add（new Button（"hello"））；  }  

• A、Nothing appears in the applet.
• B、A button will cover the whole area of the applet.
• C、A button will appear in the top left corner of the applet.
• D、A button will appear， centered in the top region of the applet.
• E、A button will appear in the center of the applet.