You are creating a Windows application by using the .NET Framework 3.5. The application has to be configured for deployment to client computers. You need to ensure that the application meets the following requirements:

* The application state is stored for each instance.
* The administrator can configure the general look and feel of the application from a single location.

What should you do?

A.
Serialize and de-serialize a formatter object.

B.
Save the application state in the App.config file.

C.
Save the application state in a central database.

D.
Save the application state in the registry key under HKEY_CURRENT_USER.