A. Traffic handled by the s-1 scheduler is serviced immediately before traffic being serviced by the s-4 scheduler.

B. Traffic handled by the s-1 scheduler is serviced immediately after traffic being serviced by the s-4 scheduler.

C. Traffic handled by the s-1 scheduler is serviced immediately after traffic being serviced by the s-2 scheduler.

D. Traffic handled by the s-1 scheduler is serviced immediately before traffic being serviced by the s-2 scheduler.