You create a Microsoft ASP.NET application by using the Microsoft .NET Framework version 3.5. You create the following controls：  a composite custom control named MyControl. a templated custom control named OrderFormData.   You write the following code segment to override the method named CreateChildControls（） in the MyControl class：   01 protected override void CreateChildControls（）  02 {   03   Controls.Clear（）；   04   OrderFormData oFData = new   05     OrderFormData（"OrderForm"）；   06 ►  07 }    You need to add the OrderFormData control to the MyControl control.  Which code segment should you insert at line 06？ （）

• A、A
• B、B
• C、C
• D、D