Which two of these statements describe important aspects of performing a wireless site survey？ （Choose two.）  （）

• A、 An 802.11 g access point with a variety of antennas can be used in all standard site surveys.
• B、 Site surveys can be performed manually or through assisted site survey.
• C、 Channel power during testing starts at the default minimum and gradually increases to the maximum.
• D、 Overlapping access points can create performance problems.
• E、 Surveys should be done after hours in an office building or during reduced inventory levels in warehouses.