You create a Microsoft ASP.NET application by using the Microsoft .NET Framework version 3.5. You plan to deploy the application to a test server.  You need to ensure that during the initial request to the application， the code-behind files for the Web pages are compiled. You also need to optimize the performance of the application.  Which code fragment should you add to the Web.config file？（）

• A、<compilation debug="true"> 
• B、<compilation debug="false"> 
• C、<compilation debug="true" batch="true"> 
• D、<compilation debug="false" batch="false">