**Which are the three characteristics of SDR? (Choose three)
A. The logical router can span across chassis.
B. Each logical router has a distinct fabric and system controller module.
C. Owner SDR can be reloaded, without affecting all non-SDRs.
D. The logical router has dedicated route processor.
E. The logical router can share line cards.
F. The fabric and system controller module are shared by all logical routers.
