How can an Einstein Consultant help them achieve this?

The Universal Containers company used Einstein Analytics to create two datasets:

Dataset A: contains a list of activities with an "activitylD" dimension and a "userlD" dimension

Dataset B: contains a list of users with a "userlD" dimension

The team wants to delete from Dataset A all activities related to users in Dataset B.

How can an Einstein Consultant help them achieve this?
A . Use the dataflow transformation "delete" and set "userlD" as the deletion ID.
B. Use a combination of dataflow transformations: "augment" and "filter."
C. Use an external ETL tool to extract both datasets and delete records. D, Use the recipe operation "delete" and set "userlD" as the deletion ID.

Answer: B