This interactive scatter plot displays automobile data from the UCI Machine Learning Repository’s Auto MPG dataset, with dropdown menus allowing users to choose which columns map to the X and Y axes. The visualization uses d3.scaleLinear, d3.extent, and d3.axisBottom/axisLeft to render the plot, while a custom dropdownMenu module handles the select elements. Circles appear with a 2-second animated transition via transition().duration() and delay, and the SVG updates dynamically as users select different variables. The code also demonstrates reusable chart functions and modular ES6 imports.