non-persistent VDI machines are deleted when they are rebooted, logged off, or shut down. Therefore, Windows Update policy should be configured to prevent automatic updates that may trigger a restart on these machines1.
https://techcommunity.microsoft.com/t5/microsoft-defender-for-endpoint/onboarding-and-servicing-non-persistent-vdi-machines-with/ba-p/1360721

The Citrix Optimizer tool is used to prepare Windows operating system images for use in a virtual desktop environment. Some of the actions that it takes to improve the gold image creation process include:
Optimizes user environments for better performance: The tool removes unnecessary or redundant services, features, and applications from the image, which can improve performance and reduce resource usage.
Uses built-in templates to perform optimizations: The tool comes with pre-configured templates that are optimized for specific environments, such as virtual desktops or server workloads. These templates can be customized based on the specific needs of the organization.
https://support.citrix.com/article/CTX224676/citrix-optimizer-tool
https://docs.citrix.com/en-us/workspace-environment-management/service/using-environment-management/system-optimization/citrix-optimizer.html

Based on the given information, the administrator is deploying 1000 instant clone virtual desktops, 500 full clone virtual desktops, and 150 applications. To support these workloads, the Nutanix solution will need multiple storage containers.
According to the Nutanix Certified Professional - End User Computing (NCP-EUC) v6 guide, for VDI workloads, it is recommended to create a separate storage container for each type of desktop (e.g. instant clone, full clone) and another container for AppStacks. It is also recommended to have at least one container for metadata and one container for replicas.
Therefore, for this scenario, a total of 3 storage containers should be created:
One container for 1000 instant clone virtual desktops
One container for 500 full clone virtual desktops
One container for 150 applications delivered via AppStacks
So the answer is C. 3.

Users may expect some level of personalization and consistency across their virtual desktop sessions, even if they do not save any changes1. To customize this user experience, administrators can use different solutions that manage user profiles and settings1.