1. Citrix Virtual Apps and Desktops Product Documentation. (n.d.). Zones. Citrix. Retrieved from https://docs.citrix.com/en-us/citrix-virtual-apps-desktops/7-2203-ltsr/manage-deployment/zones.html
Reference for A & C: In the "Why use zones?" section, the documentation states, "Managing a single Site from a single console can be more convenient than managing multiple Sites. A single Site uses a single Site database, which lowers costs." This directly supports that zones allow management of multiple locations with a single database, lowering cost and overhead.
Reference for D: In the "Why use zones?" section, it is noted, "You might use zones to keep applications and desktops closer to users, which improves performance." This supports the benefit of providing users with faster resource access.
Reference for E (as a sub-point of D): The "Zone preference" section details how administrators can configure preferred zones for users to "help users connect to resources in the closest datacenter," which is the mechanism to achieve the goal stated in option D.
Reference for B (Incorrectness): The "How zones work" section explains that Controllers in a satellite zone communicate with the database in the primary zone. This illustrates the dependency, which is managed by the Local Host Cache during an outage, not fundamentally reduced.