Which activities can you perform with the Custom CDS View app? Note: There are 2 correct answers to this question.

Which activities can you perform with the Custom CDS View app? Note: There are 2 correct answers to this question.
A . Import CDS view from an XML file
B. Join multiple associated data sources
C. Modify the data type of a field in existing CDS views
D. Define input parameters

Answer: B,C