Which of the following is not true of Media Access Control $($MAC$)$ filtering?

It is ideal for environments of all sizes.

It is a way to enforce access control on a wireless network by registering the MAC addresses of wireless clients with the AP$.$

Because the MAC address is supposed to be unique, clients are limited to those systems that have their MAC address preregistered.

To set up MAC filtering, the MAC address of each client that will use an AP must be registered on the AP$.$