What can you do to optimize communication over a wireless LAN?

A.
Place the antennas facing away from the user and free of obstructions.

B.
Shut-down unused computers to open additional bandwidth for the troubled computers.

C.
Use HP Wireless Assistant (HPWA) to boost the connection to the wireless adapter.

D.
Configure the wireless router for dual band 802.11n communication

Explanation:

Reference:
http://compnetworking.about.com/od/wireless80211/f/dual-band-wireless.htm