Why is this the best design for the XenServer resource pools?

A.
This design provides flexibility for all workloads to use available resources within a
resource pool more efficiently and ensures expansion options if the environment should
grow. Furthermore, performing a backup on a daily basis provides availability of critical
workloads with some downtime.

B.
This design separates server workloads from virtual desktops according to the different
resource usage characteristics and avoids conflicting situations. Also, critical database
services have sufficient resources within their workload-specific resource pool and failover
capabilities.

C.
This design ensures that all server workloads and virtual desktop workloads are logically
separated and do NOT interfere with each other. Furthermore, it ensures easier
management and expansion capabilities.

D.
This design ensures logical separation of all workloads and virtual desktops. Also,
providing a backup solution reduces the risk of data loss and minimizes downtime.