A Platform Administrator at Universal Containers is trying to deactivate a user who has left...

In Salesforce, certain dependencies prevent a user record from being deactivated. One of the most common blockers is if the user is the Running User of a Dashboard. Because the dashboard relies on that user's security context to display data to others, deactivating them would break the dashboard. To resolve this, the administrator must first change the running user of the dashboard to someone else. Being part of an Opportunity Team (Option C) or Account Team (Option D) does not prevent deactivation; the user simply remains on the team but is inactive. For Assignment Rules (Option B), while you cannot delete a user in a rule, deactivation is usually permitted, though it may result in an error when the rule attempts to assign a record to the inactive user. However, the "Running User" requirement is a hard system block.