You are creating a custom control. The UI of the control must contain several text boxes and two buttons. The control must be available in the global assembly cache for reuse across multiple Web applications. You need to achieve this functionality by using the minimum amount of code. What should you do? （）

• A、Create a control that derives from System.Web.UI.Control.
• B、Create a control that derives from System.Web.UI.WebControls.CompositeControl.
• C、Create a control that derives from System.Web.UI.WebControls.WebControl.
• D、Create a control that derives from System.Web.UI.UserControl.