Which two options describe best practices that must be completed after a wireless installation is finished? (Choose two.)

Which two options describe best practices that must be completed after a wireless installation is finished? (Choose two.)
A . Make sure that there are no spaces between the devices on the rack that the Wireless Lan Controller is installed.
B . Consult with the customer to ensure that the IT staff has a complete set of design and installation documents.
C . Make sure the customer is aware that they should consider purchasing a support contract immediately after the installation is complete.
D . Spend time with the customer to show them the controller GUI and inform them how they can reach the Cisco TAC if they have any problems.
E . Test all the customer’s wireless devices and applications to ensure they are working properly.

Answer: BE