Briefing Riverbed Knowledge

Which of the following is the likely cause of the problem?

In a new in-path deployment, connections are listed as pass-through on the branch office Steelhead appliance.
Which of the following is the likely cause of the problem?
1) Pass-through rule preventing optimization
2) Server-side Steelhead appliance is down
3) Satellite proxy not copying auto-discovery probes
4) Asymmetric routing is detected for the client/server flow
5) Duplex mismatch on WAN or LAN interface

A.
3, 2

B.
2, 4

C.
1, 2, 5

D.
1, 2, 3, 4

E.
1, 2, 3, 4, 5