Which statement should the designer keep in mind when considering the advanced routing features?

[answerhappygod]

Which statement should the designer keep in mind when considering the advanced routing features?

A. One-way route redistribution avoids the requirement for static or default routes.
B. Redistribution, summarization, and filtering are most often applied between the campus core and enterprise edge.
C. Filtering only occurs on the routing domain boundary using redistribution.
D. Summarize routes at the core toward the distribution layer.
E. The hierarchical flexibility of IPv6 addressing avoids the requirement for routing traffic reduction using aggregation.