You are developing a Windows Forms Application by using the .NET Framework 3.5.You plan to design a composite custom control for the application. You include a ListBox control has a property that provides the item count of  the ListBox control. You need to ensure that the property cannot be accessed at design time. Which attribute should you use?()
A、[Bindable(false)]
B、[DesignOnly(false)]
C、[EditorBrowsable(EditorBrowsableState.Never)]
D、[Browsable(false)]