You need to incorporate a data access layer to meet the requirements.
Which solution should you recommend?
A.
an Entity Data Model created by using the Entity Framework within the Web project
B.
a class that is stored in the app_code folder of the Web project, uses ADO.NET, and returns DataSets
C.
a separate data access project that includes an Entity Data Model created by using the Entity Framework
D.
a separate data access project that queries the database by using ADO.NET and returns DataSets