The correct response is B. Router2 can forward only to networks that exist in its routing table or match a less- specific usable route. If the OSPF database and routing table contain 10.10.13.0/25 but not 10.10.13.128/25, traffic for the second half of that /24 has no valid match and is discarded. For Cisco CCNA 200-301 v1.1, the important point is the mechanism, not a generic description of the technology. Load balancing requires equal- cost valid routes to the same prefix; forwarding out either interface would require a matching route that the scenario does not provide. When this appears in a network, the symptom normally confirms the answer: the route installed, the state selected, the packet forwarded, the wireless client behaviour, or the management workflow will follow this rule. That is why this answer is the best fit for the scenario and not just a plausible networking term.