Dan is told by his manager that the organization needs reliable, consolidated,unique and integrated analysis and reporting of its data, at different levels of aggregation. Which of the following best describes what Dan needs to implement?

A.
Data marts

B.
Data warehouses

C.
Databases

D.
Data objects

Explanation:
Data warehousing arises in an organization’s need for reliable,consolidated, unique and integrated analysis and reporting of its data, at different levels of aggregation. A data warehouse is a repository of an organization’s electronically stored data, designed to facilitate reporting and analysis.