Retrieval Is Very Fast Through Data Cubes Because ________

Retrieval is very fast through data cubes because ________.

A) data cubes use a separate server which is tuned for fast retrieval and reporting
B) data cubes group data in logical dimensions, such as sales by product, city, region, and country
C) data cubes represent information in the form of objects, using object-oriented programming languages to access them
D) data cubes organize data by attaching XML tags to them

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