Which statement regarding the site-survey process is correct？（）

• A、In a multifloor building， the access point layout from the survey of one floor can be directly applied to the remaining floors
• B、Access points can be installed in the same place on every floor， without worrying about co-channelinterference
• C、You can survey with a Cisco AIR-ANT5959 in a plenum environment
• D、Identify all hazardous and restricted areas that might require extra or special survey and installationwork