Updates to dynamic user group membership are automatic therefore using dynamic user groups instead of static group objects allows you to:
A . respond to changes in user behavior or potential threats using manual policy changes
B . respond to changes in user behavior or potential threats without automatic policy changes
C . respond to changes in user behavior and confirmed threats with manual policy changes
D . respond to changes in user behavior or potential threats without manual policy changes
Answer: D
Explanation:
https://docs.paloaltonetworks.com/pan-os/9-1/pan-os-new-features/user-id-features/dynamic-user-groups#:~:text=Because%20updates%20to%20dynamic%20user,threats%20without%20manual%20policy%20changes.