Which three values can be used to tag external EIGRP routes?

Which three values can be used to tag external EIGRP routes? (Choose three.)
A. The router ID of the router that redistributed the route
B. The administrative distance of the external protocol
C. The protocol ID of the external protocol
D. The cost to reach the router that redistributed the route
E. The metric from the external protocol
F. The router ID of the router from which the external protocol route was learned