You create a Microsoft ASP.NET application by using the Microsoft .NET Framework version 3.5.  The application uses a set of general-purpose utility classes that implement business logic. These classes are modified frequently.  You need to ensure that the application is recompiled automatically when a utility class is modified.  What should you do？ （） | English | Chinese | Japan | Korean | - 166 - Test Information Co., Ltd. All rights reserved.

• A、A
• B、B
• C、C
• D、D