What is the recommended approach for verifying the results?

You want to ensure that your calculation view does not give unexpected results for a query that is based on any combination of columns.

What is the recommended approach for verifying the results?
A . Set the HIDE property for columns NOT required.
B . Write and execute a custom SQL query in the SQL Console.
C . Select Data Preview for the calculation view.
D . Select and deselect columns from the output mapping.

Answer: B,C