Explanation
The consultant can meet the business requirement by setting View Dashboard As to the dashboard viewer and sharing it with program directors. This will allow the program directors to see the same reports as the Dean, but filtered by their own program, based on the sharing settings. Checking the Let Dashboard Viewers Choose Whom They View the Dashboard As on the Dean's dashboard, setting View Dashboard As to the Dean and sharing it with program directors, and adding a dashboard filter to the Dean's dashboard and saving it to All Folders are not options that can meet the business requirement. References:
https://help.salesforce.com/s/articleView?id=sf.dashboards_running_user.htm&type=5
https://help.salesforce.com/s/articleView?id=sf.dashboards_dynamic_filters.htm&type=5