ABC is correct ... One SR-MPLS TE Policy can contain multiple candidate paths with the preference attribute. The valid candidate path with the highest preference functions as the primary path of the SR-MPLS TE Policy, and the valid candidate path with the second highest preference functions as the hot-standby path.
A candidate path can contain multiple segment lists, each of which carries the Weight attribute. Each segment list is an explicit label stack that instructs a network device to forward packets. Multiple segment lists can work in load balancing mode.
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