Correct Answer: DTo enable unequal cost load balancing in EIGRP, the router must use the variance command to include routes with feasible distances within a certain multiple of the best route's feasible distance (FD). In this scenario, Site1 has to perform the balancing. Since some routes are already being balanced under the current variance of 2, increasing it to 3 will ensure that all eligible routes are included. This is calculated by comparing the FD of the feasible successors to the FD of the successor routes to ensure they fit within the variance multiplier. Therefore, setting variance to 3 on Site1 will allow for proper unequal cost load balancing for all LAN segments of the remote routers.