You are designing an application by using Microsoft .NET Framework 4, Microsoft Visual
Studio 2010, and Microsoft SQL Server 2008. The application will be used by a sales team
to enter sales orders and update customer information. You need to ensure that the
application meets the following requirements: • Allows users to enter sales orders while their
computers are disconnected from the network • Uploads sales orders to the server
database when connected to the network • Compiles against the .NET Framework 4 client
profile What should you use?

A.
XML files

B.
WCF services

C.
Microsoft Sync Framework

D.
The System.Web.Caching namespace classes