Which design should the engineer choose to ensure optimum performance?

Scenario: A Citrix Engineer is working on a Citrix Virtual Apps and Desktops deployment.

The current setup has the following characteristics:

✑ Three data centers (A, B, and C), each with a large user base.

✑ Network latency between these datacenters is more than 300 ms RTT because they are located at geographically far distances.

Which design should the engineer choose to ensure optimum performance?
A . A Multi-zone site with three zones (one primary and two secondary), with a site database in each of the three zones
B . A Multi-zone site with three zones (one primary and two secondary), with a site database in the Primary zone
C . One site for each data center with a common site database deployed at the largest site
D . One site for each data center with a separate site database for each site

Answer: B