Why is deploying two NetScaler appliances in each regional datacenter, with one in the internal network for Gateway traffic and the other in the DMZ for load balancing, the best design solution?
A. It provides intrasite redundancy in case of appliance failures.
B. It provides redundancy in case of site failures, while optimizing external WAN traffic.
C. It protects against WAN failures and connects end users to their home datacenter.
D. It allows for the expected expansion of remote access usage and provides functionality for future needs.