Which three conditions need to be present for UplinkFast to trigger a fast reconfiguration?
(Choose three.)

A.
The switch must have at least one unblocked port.

B.
The switch must have at least one blocked port.

C.
The switch must haveUplinkFast enabled.

D.
The switch must be enabled on a VLAN with switch priority configured.

E.
The failure must be on the root port.

F.
The switch must be configured for one VLAN.