Select the scenario that describes a top$-$down approach to data warehouse design.

O'Reilly's Public House, which has locations in seven states with pre$-$established data marts, merges the data marts from each location into a single data warehouse.

Mike's Decorating creates separate data marts for several individual departments, then combines them into a central data warehouse.

Gilbert's Groceries adds all of the data from its vendor, sales, and human resources departments to the central data warehouse, and then divides it between several data marts.

Tyson$$s Business Innovations creates individual data marts for its HR and Payroll departments to resolve an employee compensation dispute.