Regarding WAC monitoring on the cloud, which one is incorrect?

Regarding WAC monitoring on the cloud, which one is incorrect?
A . To configure wireless features, jump to the web network management of the device on the controller for configuration, and perform all wireless configurations through the web network management.
B . AP upgrade, upload the version file to the controller, and the controller directly upgrades the AP
C . AP works in fit AP mode, registers to WAC through capwap, and WAC manages fit AP
D . The WAC and the controller establish a netconf channel. The AP registers with the controller through the WAC. The controller manages the AP through the WAC and does not directly operate the AP.

Answer: B