In a Speech,David Poirier,chief Information Officer of Hudson's Bay Company,a

In a speech,David Poirier,chief information officer of Hudson's Bay Company,a Canadian retailer,said,"We [Hudson's Bay Company] had all kinds of data in different places.We didn't have a single view of the customer until we focused on finding one method to manage relationships with our customers." Hudson's Bay would use a _____ to profile customer segments for better CRM marketing efforts.

A) data mart
B) customer information system
C) data warehouse
D) decision support system
E) data cluster