You plan to create a dashboard in the Power BI service that will retrieve data from a tabular database in Microsoft SQL Server Analysis Services (SSAS). The dashboard will be shared between the users

For connecting to an on-premises SQL Server Analysis Services tabular database from the Power BI service, a standard on-premises data gateway is required to bridge the secure connection. The 'Connect live' option establishes a direct, real-time connection to the SSAS model, allowing Power BI reports and dashboards to query the model on demand and always display the most current data.

While DirectQuery is a general concept for live connections, for SSAS, the specific option in Power BI is 'Connect live,' and the terminology 'DirectQuery Data Connectivity mode' is primarily used for relational databases.

An on-premises data gateway (personal mode) cannot be shared with other users in the organization, failing the 'shared between the users' requirement for the dashboard.

Similar to C, connecting with a personal mode gateway is not suitable for sharing across an organization, regardless of the connectivity type used.