A.the time it takes to identify the optimal path for the LSP
B.the interval at which the ingress router recalculates the LSP’s path
C.the time the ingress router takes to establish the primary path
D.the maximum number of times the ingress router tries to establish the primary path

A.The router will use path1 when it is available and stable.
B.The router will use path3 when it is available and stable.
C.The router will attempt to establish path2 only when path1 and path3 are down.
D.The router will attempt to establish path1 only when path2 and path3 are down.