Which option is required on the Cisco ASR 5000 to map the S1U upstream packet to a corresponding DSCP value on the SGW?
A. Use the create qci-qos-mapping table with the appropriate settings and apply it to the SGW service.
B. Use the create qci-qos-mapping table with the appropriate settings and apply it to the GTPU service.
C. Use the create qci-qos-mapping table with the appropriate settings and apply it to the EGTP service.
D. The S1U upstream packets cannot be marked on the SGW.
