You create an application by using Microsoft Visual Studio .NET 2008 and the .NET Framework 3.5. The application must use a local data store to support those applications that connect occasionally. You need to ensure that the local data store meets the following requirements:

It does not create additional services on client computers.
It provides synchronization capabilities to other data stores.

Which local data store should you use?

A.
Serialized XML

B.
Microsoft SQL Server 2008 Express Edition

C.
Microsoft SQL Server 2008 Compact Edition

D.
Microsoft SQL Server 2008 Workgroup Edition