In the IEEE 802.11-2012 standard, what is the purpose of the 802.1X Uncontrolled Port?

A.
To allow only authentication frames to flow between the Supplicant and Authentication Server

B.
To block authentication traffic until the 4-Way Handshake completes

C.
To pass general data traffic after the completion of 802.11 authentication and key management

D.
To block unencrypted user traffic after a 4-Way Handshake completes