Refer to the exhibit. What must an administrator do on R3 to ensure that update packets are sent with subnet mask information?

Refer to the exhibit. What must an administrator do on R3 to ensure that update packets are sent with subnet mask information?

• Add the commands:
  R3(config-router)# auto-summary
  R3(config-router)# no version 2
• Add the commands:
  R3(config-router)# version 2
  R3(config-router)# no auto-summary
• Change the network statement on R3:
  R3(config)# network 10.10.4.0
• Add the command:
  R3(config)# ip route 0.0.0.0 0.0.0.0 s0/0

Exam with this question: CCNA Discovery 4: DCompNtwk Chapter 6 Exam