You are developing an ASP.NET application by using Visual Studio 2010. You need to interactively debug the entire application. Which two actions should you perform？ （）

• A、Set the Debug attribute of the compilation node of the web.config file to true.
• B、Add a DebuggerDisplay attribute to the code-behind file of the page that you want to debug.
• C、Select the ASP.NET debugger option in the project properties.
• D、Define the DEBUG constant in the project settings.