Q38. Scenario: A Citrix Administrator configures the ‘Auto connect client drives‘ user settings to map client drives within the HDX session for all published desktops. The setting is configured in a Baseline Group Policy Object (GPO) and linked to an Organizational Unit (OU) that contains all of the published desktops. When a user launches the desktop, client drives are NOT mapped. What is a possible reason? (场景：Citrix管理员配置“自动连接客户端驱动器”的用户设置，以便在所有已发布的桌面的HDX会话中映射客户端驱动器。该设置在基线组策略对象（GPO）中进行配置，并链接到包含所有已发布的桌面的组织单位（OU）。当用户启动桌面时，客户端驱动器不会被映射。一个可能的原因是什么？
A gpupdate /force needs to be executed on all of the machines.
BLoopback processing is NOT enabled.
CThe GPO needs to be linked to the User OU.
D Desktops need to be restarted for the policy to be applied.