which of the following is needed to establish a connection?

For any given 802.11n wireless Internet signal, which of the following is needed to establish
a connection?

A.
MAC address filtering

B.
Windows password

C.
Proper SSID

D.
SSL certificate

Explanation:

Reference:
http://www.cisco.com/en/US/docs/wireless/access_point/12.4_21a_JA1/configuration/guide/
scg12421aJA1 -chap7-mbssid.html