83.Some bits of a Visual Basic 6 application, like most APIs, can be easily migrated to VB.NET; other parts are not so straightforward. Which of the following will NOT have to be re-architected during a VB 6-to-VB.NET migration?

A.DHTML pages
B.ActiveX documents
C.OLE controls
D.ADO to ADO via Interop
Ans:D