You are designing a Windows Presentation Foundation (WPF) application. The WPF
application must run against either Microsoft SQL Server 2008 or a third-party database
system without duplicating data access logic. You need to recommend a data access
technology. What should you recommend?

A.
ADO.NET using DataSet objects and SqlDataAdapter objects

B.
LINQ to Entities

C.
LINQ to SQL

D.
ADO.NET using DataSet objects and SqlDataReader objects