This scatter plot explores data from the UCI Machine Learning Repository's Auto MPG dataset, but it displays height and weight measurements from a separate CSV file. Two dropdown menus let users select which columns map to the X and Y axes, updating the plot dynamically. The visualization uses D3 v5's `scaleLinear`, `axisLeft`, `axisBottom`, and `transition` APIs to animate the circles smoothly to their new positions as selections change. The SVG rendering uses semi-transparent green circles to show the data distribution.