ETL & Star SchemaRemodeling

What two are the main benefits of a star schema model? (Select two)

() It creates additional relationships so that every column of data is in its own table.

()It normalizes data, reducing the duplication of unnecessary data, saving storage space

()It normalizes data, so that rows from the fact table are sorted into similar groups.

()It separates the data into tables of semantically similar data (product, location, person).