What should the network administrator do next to troubleshoot this problem?

Refer to the exhibits.

Exhibit 1

Exhibit 2

Exhibit 3

A network administrator wants to allow contractors to access the corporate WLAN named EmployeesNet with the contractor role in VLAN 40. When users connect, they do not seem to get an IP address. After some verification checks, the network administrator confirms the DHCP server (10.254.1.21) is reachable from the Mobility Controller (MC) and obtains the outputs shown in the exhibits.

What should the network administrator do next to troubleshoot this problem?
A . Permit UDP67 to the contractor role.
B . Remove the IP address in VLAN 40.
C . Configure the DHCP helper address.
D . Confirm there is an IP pool for VLAN 40.

Answer: A