You create a Microsoft ASP.NET application by using the Microsoft .NET Framework version 3.5.  You add a Web form that contains the following code fragment. You write the following code segment for the GetData method of the DAL class. (Line numbers are included for reference only.)  01 public object GetData（　） {  02 SqlConnection cnn = new SqlConnection( )  | English | Chinese | Japan | Korean | - 41 - Test Information Co., Ltd. All rights reserved. 03 string strQuery = "SELECT * FROM Products";  04  05 }  You need to ensure that the user can use the sorting functionality of the gvProducts GridView control.  Which code segment should you insert at line 04? （）

• A、A
• B、B
• C、C
• D、D