You have a Microsoft ASP.NET Framework version 1.0 application. The application does not use any features that are deprecated in the Microsoft .NET Framework version 3.5. The application runs on Microsoft IIS 6.0.  You need to configure the application to use the ASP.NET Framework version 3.5 withoutrecompiling the application.  What should you do？ （）

• A、Edit the ASP.NET runtime version in IIS 6.0.
• B、Edit the System.Web section handler version number in the machine.config file.
• C、Add the requiredRuntime configuration element to the Web.config file and set the version attribute to v3.5.
• D、Add the supportedRuntime configuration element in the Web.config file and set the version attribute to v3.5.