Which two processes can achieve this?

An EinsteinAnalytics team wants to create a dashboard using two standard Salesforce objects. The dashboard should display data from the Case object, along with related data from the Account object.

Which two processes can achieve this?
A . Extract data from the case and account objects using "sfdcDigest" transformation, Q use "append" transformation to add case data with account data, store as a dataset, and then build a dashboard using the generated dataset
B. Extract data from the case and account objects using an ETL tool, use the ETL tool to y/ Q join account and case data, and then upload the data to Einstein Analytics. Build a dashboard using the ETL generated dataset
C. Extract data from the case and account objects using "sfdcDigest" transformation, y/ Q use"augment" transformation to add case data with account data, store as a dataset, and then build a dashboard using the generated dataset
D. Extract data from the case and account objects using "dataloader", create a CSV file Q with account and case data,and then upload the CSV as a dataset to Einstein Analytics. Build a dashboard using that dataset

Answer: B,C