Which two methods can you use to limit the range for EIGRP queries? (Choose two)

Which two methods can you use to limit the range for EIGRP queries? (Choose two)
A . Configure unicast EIGRP on all routers in the EIGRP domain
B . Configure route tagging for all EIGRP routes
C . Summarize routes at the boundary routers of the EIGRP domain
D . Use an access list to deny the multicast address 224 0 0 10 outbound from select EIGRP neighbors and permit everything else
E . Use an access list to deny the multicast address 224 0 0 1 outbound from select EIGRP neighbors and permit everything else
F . Configure stub routers in the EIGRP domain

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Answer: C, F