What should your model contain?

You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4.0 to create an application.
The application connects to a Microsoft SQL Server database.
The Data Definition Language (DDL) script of the database contains the following code segment:

CREATE TABLE [Sales].[SalesOrderHeader](
[SalesOrderID] [int] IDENTITY(1,1) NOT NULL,
[BillToAddressID] [int] NOT NULL,

CONSTRAINT [PK_SalesOrderHeader_SalesOrderID]
PRIMARY KEY CLUSTERED ([SalesOrderID] ASC)
)

ALTER TABLE [Sales].[SalesOrderHeader]
WITH CHECK ADD CONSTRAINT [FK_SalesOrderHeader_Address]
FOREIGN KEY([BilIToAddressID])
REFERENCES [Person].[Address]([AddressID])

You create an ADO.NET Entity Framework model. You need to ensure that the entities of the model correctly map to the DDL of the database.
What should your model contain?

A.

B.

C.

D.