You create an application by using Microsoft Visual Studio .NET 2008 and the .NET Framework 3.5.
Users access the application by using Windows-based client applications or Web-based client applications.
All client applications share common business logic to handle transaction processing requests.
You need to ensure that the application is easy to maintain. What should you do?

A.
Create a single component and host the component on each client application.

B.
Create a single component and host the component on a separate application tier.

C.
Create separate components and host the components on each application tier.

D.
Create separate components and host the components on each client application.