How can business users create new analytics content? Response: 3 answers in this question

How can business users create new analytics content? Response: 3 answers in this question
A . Change existing data sources by adding filters
B. Change underlying database tables of standard data sources
C. Create additional key figures in existing data sources
D. Create new data sources via joins of standard data sources
E. Change the UI layout via field extensibility

Answer: C,D,E