What would be the easiest way to circumvent and communicate on the WLAN?

While probing an organization you discover that they have a wireless network. From your attempts
to connect to the WLAN you determine that they have deployed MAC filtering by using ACL on the
access points. What would be the easiest way to circumvent and communicate on the WLAN?

A.
Attempt to crack the WEP key using Airsnort.

B.
Attempt to brute force the access point and update or delete the MAC ACL.

C.
Steel a client computer and use it to access the wireless network.

D.
Sniff traffic if the WLAN and spoof your MAC address to one that you captured.

Explanation:
The easiest way to gain access to the WLAN would be to spoof your MAC address
to one that already exists on the network.