All of the Following Are Unique Characteristics of a Logical

Multiple Choice

All of the following are unique characteristics of a logical data mart EXCEPT:

A) logical data marts are not physically separate databases, but rather a relational view of a data warehouse.
B) the data mart is always up-to-date since data in a view is created when the view is referenced.
C) the process of creating a logical data mart is lengthy.
D) data are moved into the data warehouse rather than a separate staging area.