What is the final step for a business analyst to complete a bar chart using a measure and three dimensions: Region, Product Category, and Month?

To complete a bar chart using a measure and the three dimensions—Region, Product Category, and Month—the appropriate final step is to create a single master dimension that encompasses all three of these components. This method allows the bar chart to visualize the data by properly categorizing it across the defined dimensions.

A master dimension that integrates Region, Product Category, and Month facilitates more enriched and comprehensive insights in the chart, enabling the business analyst to compare and analyze the relationships and trends among these dimensions effectively. It ensures that the displayed data reflects the interplay of these factors, making it easier to derive meaningful interpretations or presentations for stakeholders.

The other options present different approaches but do not effectively leverage the dimensional constructs necessary for a robust bar chart. Adding a second measure, for instance, does not solve the issue of having three core dimensions for analysis. Similarly, grouping data by Region only or filtering out the Month dimension would limit the analytical capabilities of the chart and could lead to a loss of critical information necessary for informed decision-making.