Refer to the exhibit. How was the OSPF default gateway entry for R2 determined?

Refer to the exhibit. How was the OSPF default gateway entry for R2 determined?

• Default routes are automatically injected by OSPF into all advertisements.
• A static default gateway route is defined in the configuration of R2.
• The default-information originate command is applied on R1.
• The ISP defines the gateway of last resort and automatically passes it to R1 and R2.
• The ip default-gateway command is applied on R2.

Exam with this question: CCNA Discovery 3: DRSEnt Chapter 6 Exam