Why is it recommended for a wireless network administrator to disable 1 Mbps and 2 Mbps data
rates on the WLAN infrastructure? (Choose two)

A.
To improve capacity in the BSS

B.
To reduce the size of the AP’s effective service area

C.
To prevent 802.11b devices from associating

D.
To maximize the range of the highest data rates

E.
To prevent VoWiFi multicast frames

F.
To enable support for long preambles