Which statement correctly differentiates OSPF and EIGRP?

The correct statement is that OSPF uses multicast addresses 224.0.0.5 (All OSPF Routers) and 224.0.0.6 (All Designated Routers and Backup Designated Routers), while EIGRP uses 224.0.0.10 (All EIGRP Routers). These are fundamental differences in how they discover neighbors and exchange routing information. The other options are incorrect: OSPF's default hello timer is 10 seconds on broadcast/point-to-point links and 30 seconds on NBMA. EIGRP's default hello timer is 5 seconds on high-bandwidth links and 60 seconds on low-bandwidth links. OSPF has an administrative distance of 110, not 115. EIGRP's administrative distance for internal routes is 90, and for external routes is 170, not 160. OSPF uses IP protocol number 89, while EIGRP uses IP protocol number 88. These are reversed in the incorrect option.