Which of the following is incorrect about enterprise data warehouses?
a. Enterprise data warehouses do not have duplicate data from operational applications
b. Enterprise data warehouses should not include data from outside of the enterprise.
c. Enterprise data warehouses gather data from operational databases
d. Enterprise data warehouses are used to support decision-making tasks

Option-B

Enterprise data warehouses should not include data from outside of the enterprise.                                                                                                                                                                  

Explanation:

The enterprise data warehouse has the required or optimum level of information which serves as the basic need for processing multiple operations inside a company or any firm.