You need to evaluate whether the currently available network bandwidth is adequate to run NewApp.  Which three actions should you perform？（）

• A、 Use a debug version of NewApp to collect information about NewApp.
• B、 Use Performance Monitor to collect data about the saturation of each WAN link.
• C、 Use Network Monitor to analyze the data that is transmitted over the network for App1.
• D、 Install SNMP on all computers that are connected to App1 to obtain information about App1. 
• E、 Build a test environment for NewApp to analyze how much bandwidth is required for NewApp.