R1 has taken the DROTHER role in the OSPF DR/BDR election process. Which configuration must an engineer implement so that R1 is elected as the DR?

Refer to the exhibit. R1 has taken the DROTHER role in the OSPF DR/BDR election process. Which configuration must an engineer implement so that R1 is elected as the DR?

• A.
  R1 (config)#interface FastEthernet 0/0
  R1 (config)#ip ospf priority 1
  R1 #clear ip ospf process
• B.
  R1 (config)#interface FastEthernet 0/0
  R1 (config)#ip ospf priority 200
  R1 #clear ip ospf process
• C.
  R3 (config)#interface FastEthernet 0/1
  R3 (config)#ip ospf priority 200
  R3 #clear ip ospf process
• D.
  R2 (config)#interface FastEthernet 0/2
  R2 (config)#ip ospf priority 1
  R2 #clear ip ospf process