Refer to the exhibit. Which two configurations must the engineer apply on this network so that R1 becomes the DR? (Choose two.)

A. R3(config)#interface fastethernet 0/0
R3(config-if)#ip ospf priority 0
B. R1(config)#router ospf 1
R1(config-router)#router-id 192.168.100.1
C. R1(config)#interface fastethernet 0/0
R1(config-if)#ip ospf priority 200
D. R1(config)#interface fastethernet 0/0
R1(config-if)#ip ospf priority 0
E. R3(config)#interface fastethernet 0/0
R3(config-if)#ip ospf priority 200