This interactive scatter plot visualizes the auto-mpg dataset, allowing users to select which columns appear on the x- and y-axes via dropdown menus. The visualization uses D3 v5 with SVG rendering and animated transitions, where circles expand from the center to their positions over two seconds. The code imports reusable modules for the dropdown menu and scatter plot, utilizing D3 scales (scaleLinear, scalePoint), axes (axisLeft, axisBottom), and the extent function to determine data domains.