You use Microsoft .NET Framework 4 to create a Windows Presentation Foundation (WPF) application. You use the ClickOnce deployment methodology to distribute the application. You need to store application-specific data along with read/write permissions without requiring elevated permissions for the application. Where should you store the application data?（）

• A、 In isolated storage.
• B、 On the database server.
• C、 In the ClickOnce data directory.
• D、 In the App.config file of the application.