Which two actions provide maximum support of Osco 3800 Series access points?

An engineer must perform an assessment of a customer LAN for a future IEEE 802.llac Wave 2 wireless deployment. All access switches are Fast Ethernet-capable only, and the wired infrastructure between existing APs and access switches is based on the CAT 6A standard.

Which two actions provide maximum support of Osco 3800 Series access points? (Choose two)
A . Replace the existing switches with gigabit switches with 10 G uplinks.
B . Ensure that cable distances between access switches and APs are not longer than 55 meters.
C . Replace the existing wiring infrastructure with the CAT-7E wiring standard.
D . Replace the existing switches with mGig switches.
E . Ensure that cable distances between access switches and APs are not longer than 100 meters

Answer: A,D