What is a benefit of choosing a 3-Tier design with routing at the Aggregation layer?

What is a benefit of choosing a 3-Tier design with routing at the Aggregation layer?
A . Better Core router performance by offloading processing
B . Shifting endpoint access to the Aggregation layer from the Access layer
C . Using access control lists (ACLs) at the Core to improve performance
D . Connecting WAN/MPLS and Data center access to the Aggregation layer

View Answer

Answer: A