A Network Administrator Is Securing the Wireless Network in a Multitenant

Multiple Choice

A network administrator is securing the wireless network in a multitenant building. The network uses a passphrase for authentication so it is easy to allow guests onto the wireless network, but management would like to prevent users from outside the office space from accessing the network. Which of the following security mechanisms would BEST meet this requirement?

A) MAC filtering
B) WPA-PSK
C) 802.1X
D) Geofencing