You create a Web Form. You need to add controls that use adaptive rendering to display content. The type of content rendered must depend on the device that is requesting the page. What are two possible ways to achieve this goal?（）

• A、Add custom controls that emit XHTML to the Web Form.
• B、Add custom controls that emit WML to the Web Form.
• C、Add mobile controls to the Web Form.
• D、Add Web server controls to the Web Form.