What can you achieve with rule groups in an SAP BW transformation? Note: There are 2 correct answers to this question.

What can you achieve with rule groups in an SAP BW transformation? Note: There are 2 correct answers to this question.
A . Characteristics with the same key figure mapping are grouped.
B . Keep the number of records in the source and in the target identical.
C . Key figures with the same characteristic mapping are grouped
D . One record in the source creates a record in the target for each rule group.

Answer: C, D