You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4 to create an application. The application connects to a Microsoft SQL Server database. The application uses the following object query to load a product from the database. (Line numbers are included for reference only.) 01 Using advWorksContext As New AdventureWorksEntities() 02 Dim productQuery As ObjectQuery(Of Product) = 03
advWorksContext.Product.Where(“it.ProductID = 900”) 04 05 End Using You need to log the command that the query executes against the data source. Which code segment should you insert at line 04?

A.
Trace.WriteLine(productQuery.ToString())

B.
Trace.WriteLine(productQuery.ToTraceString())

C.
Trace.WriteLine(productQuery.CommandText)

D.
Trace.WriteLine((DirectCast(productQuery, IQueryable)).Expression)