Scenario: A Citrix Administrator maintains a XenDesktop infrastructure with both internal and external users. The extern

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Scenario: A Citrix Administrator maintains a XenDesktop infrastructure with both internal and external users. The external users access the XenDesktop environment through Citrix Gateway, which is configured to control access to published applications and desktops using Citrix Gateway session policies.
What additional step does the administrator need to perform on the XenDesktop environment to allow access for the remote users?

A. Enable trusts sent to XML Service through HDX policies in Studio.
B. Enable trusts sent to XML Service through PowerShell on the VDA.
C. Enable External beacons on the Citrix Gateway device.
D. Enable trusts sent to XML Service through PowerShell on the Controllers.