The network architect wants to reduce the OSPF database in the network by using summarization techniques. In which two places in the network can summarization be applied to maximum effect? (Choose two.)
A. on the OSPF links of all ABR routers
B. on the OSPF links of all ASBR routers
C. on the OSPF links of all backbone routers
D. on the routing process of all ABR routers
E. on the routing process of all ASBR routers
F. on the routing process of all backbone routers
