You are creating an ASP.NET application by using the .NET Framework 3.5. Users access the application by using different operating systems and different browsers. You plan to incorporate a new control in the application. You need to ensure that the control meets the following business requirements: It can be accessed through the Microsoft Visual Studio .NET 2008 toolbox. It can operate without any other prerequisite controls. Which type of control should you choose?
A.
A user control
B.
An ActiveX control
C.
A Web Parts control
D.
A custom server control