This interactive scatter plot displays automobile data from the UCI Machine Learning Repository’s Auto MPG dataset. Three dropdown menus let the user independently select which numeric columns map to the x-axis, y-axis, and bubble size, with all points animating via D3 transitions when selections change. The visualization uses D3 v5 APIs including `scaleLinear`, `axisBottom`, `axisLeft`, and `csv` to load and render SVG circles with semi-transparent red fills, showing relationships among attributes like mpg, horsepower, and weight.