Which of the following best describes an interactive visualization in Power BI?

An interactive visualization in Power BI is characterized by its ability to allow users to engage with the data dynamically, making choice B the best description. This type of visualization includes elements such as filters, sliders, and drill-down features that enable users to explore different aspects of the data based on their specific questions or interests. The interaction enhances the analysis process, facilitating deeper insights as users alter parameters and view the results in real time.

In contrast, other options represent formats that lack this level of engagement. A simple text report offers static information without any user manipulation capabilities. A non-interactive chart does not provide the ability to explore data dynamically, limiting understanding to what is displayed in the chart without further interaction. A complex code-based graph might involve intricate programming and visual representation but does not inherently imply interactivity, as it could also be rendered as a static graphic without user manipulation. Thus, the true essence of interactivity in visualizations is encapsulated in the ability to manipulate visual elements for deeper insights.