In an MPLS network that uses LDP to establish LSP, when the directly connected downstream transit node of the ingress node that sends a label request will distribute labels to the ingress only after…

In an MPLS network that uses LDP to establish LSP, when the directly connected downstream transit node of the ingress node that sends a label request will distribute labels to the ingress only after receiving the label mapping message from the final downstream egress node, which of the following combinations of label publishing mode and label distribution control mode is used at this time?