These are collections of data designed to support management decision making, and sometimes serve as repositories of organizational knowledge.
a) data-marts
b) data containers
c) data warehouses
d) data storage centers
e) raid

C) Data warehouse

Explanation:

Data warehouse basically define as the collection of data that are designed to support and guide in various types of management decisions. It basically considered as the core component in the business intelligence.

It is the central repositories in the integrated information or data in the organization. It is used for the data analysis purpose. The warehouse data are basically collected from the external source and the operational data.  

a.