This interactive scatter plot visualizes the Auto MPG dataset from UCI, letting users explore relationships between car attributes via dropdown menus. The D3 v5 code uses `d3.csv` to load data and `d3.scaleLinear` with axis generators to render SVG axes and circles. The `dropdownMenu` module updates selections, while `scatterPlot` animates points using `transition().duration()` when axes change. The example demonstrates dynamic data-driven visualization with user-controlled encodings.