During the process of fallover testing， a client/server database needs to be tested. On the AIX Server， start/stop/cleanup scripts and server application functionality have been tested.  Before moving onto the next step of fallover testing，what action must be completed？（）

• A、 Run who -a and validate that client connections are restored.
• B、 Verify that the client side application is functioning properly.
• C、 Check hacmp.out log file to validate that the application server started.
• D、 Verify that the application will successfully stop and restart on the fallover node.