Final answer:
The end user may not see the same folders as a colleague in Adobe Campaign if they have different access rights or are logged into a different instance.
Step-by-step explanation:
Option A: The user may have different access rights than the colleague. In Adobe Campaign, access to folders can be restricted based on user roles and permissions. If a user has different access rights compared to their colleague, they may not see the same folders.
Option C: The user may be logged into a different instance than the colleague. In Adobe Campaign, multiple instances can be set up, each with its own set of folders. If a user is logged into a different instance than their colleague, they will not see the same folders.