Which statement related to Essbase design is true?

Which statement related to Essbase design is true?

A.
Calc scripts are more efficient at performing calculations vs. member unary operators and
member formulas

B.
One big application is better than three smaller focused applications.

C.
Attribute dimensions require less performance consideration in ASO databases because
they are treated as alternate rollups

D.
Attribute dimensions require less performance consideration in BSO databases because
they are dynamically calculated

E.
Bigger block sizes are better than smaller block sizes

Explanation:
http://www.oracledatabase12g.com/wpcontent/uploads/book/Oracle%20Essbase%20&%20
Oracle%20OLAP.pdfPage 92