Explanation B: Virtual tables (also known as virtual entities) enable the integration of data residing in external systems by seamlessly representing that data as tables in Microsoft Dataverse, without replication of data and often without custom coding. CE: Authenticating to a Gen 1 DataLakeStore Account Gen 1 uses OAuth 2.0 in Azure AD for authentication. Reference: https://www.cdata.com/kb/tech/azuredatalake-odata-powerapps.rst