A wireless engineer is unable to join lightweight access points to the Cisco Wireless Controller.
The access points receive ip addresses from a DHCP pool configured on the core switch.
Which action must be taken to resolve the issue?
A . Upgrade the Wireless Controller to a newer IOS release.
B . Configure option 43 on the DHCP pool.
C . Configure option 82 on the Wireless controller.
D . Change the management ip address on the Wireless Controller.
Answer: B