You create a Microsoft ASP.NET application by using the Microsoft .NET Framework version 3.5.  You create a file named movies.xml that contains the following code fragment.                     You add a Web form to the application.  You write the following code segment in the Web form. （Line numbers are included for reference only.）  01   02   06  07   You need to implement the XmlDataSource control to display the XML data in a TreeView control. Which code segment should you insert at line 06？（）

• A、A
• B、B
• C、C
• D、D