In a multicluster deployment model, a customer is using centralized TFTP service. Firewalls are
being implemented between each of the clusters. After the installation of the firewalls, the
centralized TFTP stopped serving files. What must be changed on the firewalls to fix this issue?

A.
Open TCP port 22 between the leaf clusters and the central cluster.

B.
Open TCP port 443 between the leaf cluster and the central cluster.

C.
Open TCP port 8443 between the leaf cluster and the central cluster.

D.
Open UDP port 69 between the leaf cluster and the central cluster.

E.
Open TCP port 80 between the leaf cluster and the central cluster.

F.
Open UDP port 500 to enable certificate synchronization between the TFTP servers.