This interactive scatter plot visualizes automobile data from the UCI Machine Learning Repository’s Auto MPG dataset. Users select which columns to map to the X and Y axes via dropdown menus built with a reusable `dropdownMenu` function. The visualization uses d3.v5’s `scaleLinear`, `axisBottom`, and `axisLeft` for axes, and renders SVG circles with a 2-second animated transition that staggers each point’s appearance. Attribute mappings update dynamically when menu selections change, leveraging D3’s data joins and the `transition().delay()` method.