You work as a Web

You work as a Web Developer at Certkiller.com. You are in the process of creating a Webapplication using Microsoft ASP.NET 3.5.  In order toimplement partial rendering on a page you add the following markup：  <asp：ScriptManager ID="_scriptManager" runat="server"/>  <asp：UpdatePanel ID="updatePanel1" runat="server">  <ContentTemplate>  <asp：Label ID="label1" runat="server"/>  <asp：Button ID="CKupdateButton" runat="server" Text="Update"/>  </ContentTemplate>  </asp：UpdatePanel>  <asp：UpdatePanel ID="updatePanel2" runat="server">  <ContentTemplate>  <asp：Label ID="label2" runat="server"/>  </ContentTemplate>  <Triggers>  <asp：AsyncPostBackTrigger ControlID="CKupdateButton"/>  </Triggers> </asp：UpdatePanel>  You only want the content in the updatePanel2 control to be updated when the Button controlnamed _btnUpd is clicked. You need to configure the page to accomplish this goal of thecompany.  What should you do？（）

• AYou should consider replacing AsyncPostBackTrigger with PostBackTrigger.
• BYou should consider setting the UpdateMode property of updatePanel2 to Conditional.
• CYou should consider setting the ChildrenAsTriggers property of updatePanel1 to false.
• DYou should consider setting the ChildrenAsTriggers property of updatePanel2 to false.
• EYou should consider setting the UpdateMode property of updatePanel1 to Conditional.
• FYou should consider setting the UpdateMode property of updatePanel2 to Always.