Which two steps are associated with the active portion of the audit when a post-installation audit is performed with an auditing tool such as Ekahau? (Choose two.)

Which two steps are associated with the active portion of the audit when a post-installation audit is performed with an auditing tool such as Ekahau? (Choose two.)
A . Check for co-channel interference by standing near an access point on one channel and watching for other access points that are on the same channel.
B . Verify smooth roaming.
C . Check to see if the signal level on other access points that are heard on the same channel is at least 19dBm weaker than the access point that you are next to.
D . Check that all channels are supported by the APs, regardless of client capabilities.
E . Verify that the network traffic of physical data rate and packet loss meets user requirements.

Answer: BE