Certkiller.com has hired you as a system administrator for their network. The Certkiller.comnetwork consists of a Microsoft ASP.NET Framework v1.0 application.  The current application is configured to run Microsoft IIS 6.0. The current application is not usingany of the features that are deprecated in Microsoft .NET Framework v3.5. You receive an instruction from management to configure the application to use ASP.NET Framework v3.5. Youneed to achieve this without recompiling the application.  What should you do？（） A: A B: B C: C D: D