Refer to the exhibit. Which command sequence on RouterB will redistribute a gateway of last resort to the other routers in OSPF area 0?

Refer to the exhibit. Which command sequence on RouterB will redistribute a gateway of last resort to the other routers in OSPF area 0?

• RouterB(config)# router ospf 10
  RouterB(config-router)# gateway-of-last-resort 172.16.6.6
  RouterB(config)# ip route 0.0.0.0 0.0.0.0 serial 0/0/0
• RouterB(config)# ip route 0.0.0.0 0.0.0.0 172.16.6.6
  RouterB(config)# router ospf 10
  RouterB(config-router)# default-information originate
• RouterB(config)# router ospf 10
  RouterB(config-router)# default-network 172.16.6.6 0.0.0.3 area 0
  RouterB(config)# ip route 0.0.0.0 0.0.0.0 172.16.6.6
• RouterB(config)# ip default-route 0.0.0.0 0.0.0.0 172.16.6.6
  RouterB(config)# router ospf 10
  RouterB(config-router)# redistribute ip default-route

Exam with this question: CCNA Exploration 2: ERouting Chapter 11 Exam Answers