Which of the following is NOT a data source that Power BI can connect to?

Power BI supports a wide range of data sources for connection and analysis. Google Sheets is not natively listed as a direct data source that Power BI can connect to out of the box. While users might be able to import data from Google Sheets through intermediate steps, such as exporting the data to a CSV file or using third-party connectors or APIs, this does not constitute a direct connection option provided within Power BI itself.

In contrast, SQL Server, Excel, and Access are all included as native data sources that Power BI can connect to. SQL Server allows for robust querying and data modeling, Excel provides a flexible way to work with spreadsheets and structured data, and Access supports integration with legacy databases. All these databases can be connected seamlessly, allowing users to import, analyze, and visualize their data efficiently in Power BI.