Which capability risk will the architect need to investigate to address these issues?

Scenario: A Citrix Architect is designing a new Citrix Virtual Apps and Desktops environment. While performing a capabilities assessment of the existing infrastructure, it was discovered that there are issues with load balancing users, and that the existing load-balancing hardware is outdated.

Which capability risk will the architect need to investigate to address these issues?
A . Windows Server and Active Directory (AD) environments.
B . Citrix Virtual Apps and Desktops environments
C . Network architecture
D . Access infrastructure

Answer: D

Explanation:

https://docs.citrix.com/en-us/xenapp-and-xendesktop/7-15-ltsr/citrix-vdi-best-practices/design/design-userlayer2.html