How is data security handled for the live connection between SAP Analytics Cloud and SAP BW/4HANA?

How is data security handled for the live connection between SAP Analytics Cloud and SAP BW/4HANA?
A . Data records are filtered according to the settings in the SAP BW/4HANA analysis authorizations.
B . SAP BW/4HANA analysis authorizations are evaluated on the SAP BW/4HANA back-end side.
C . Data can be secured by allowing or prohibiting access to ADSO partitions.
D . SAP Analytics Cloud performs an authorization check after retrieving the query result from the SAP U BW/4HANA back end.

Answer: B