You create a Microsoft ASP.NET application by using the Microsoft .NET Framework version 3.5. The application contains a DataSourceControl named CategoriesDataSource that is bound to a Microsoft SQL Server 2005 table. The CategoryName column is the primary key of the table. You write the following code fragment in a FormView control:  
	01 <tr>  
	02   <td align="right"><b>Category:</b></td>  
	03   <td><asp:DropDownList ID="InsertCategoryDropDownList"  
	04 ► 
	05     DataSourceID="CategoriesDataSource"  
	06     DataTextField="CategoryName"  
	07     DataValueField="CategoryID"  
	08     RunAt="Server" />  
	09   </td>  
	10 </tr>   
	You need to ensure that the changes made to the CategoryID field can be written to the database. 
	Which code fragment should you insert at line 04?()
	A.SelectedValue='<%# Eval("CategoryID") %>' 
	B.SelectedValue='<%# Bind("CategoryID") %>' 
	C.SelectedValue='<%# Eval("CategoryName") %>' 
	D.SelectedValue='<%# Bind("CategoryName") %>'
 
                            