R1 and R2 are connected and are running EIGRP on all their interfaces, R1 has four
interfaces, with IP address 172.16.1.1/24, 172.16.2.3/24,172.16.5.1/24, and 10.1.1.1/24. R2
has two interfaces, with IP address 172.16.1.2/24 and 192.168.1.1/24. There are other
routers in the network that are connected on each of the interfaces of these two routers that
are also running EIGRP. Which summary routes does R1 generate automatically (assuming
auto-summarization is enable)? (choose two)

A.
192.168.1.0/24

B.
10.0.0.0/8

C.
172.16.1.0/22

D.
172.16.0.0/16