This example presents an interactive scatter plot of the Iris dataset, allowing users to choose which flower measurements to display on the X and Y axes via dropdown menus. The visualization uses D3 v6 with reusable chart and menu modules, applying `scaleLinear` for axes and transitioning circle positions with `transition().duration(1000)`. Points grow from zero radius on initial render, and updates are staggered with a delay. The data is loaded from a CSV file and rendered as SVG, with the menus built from a reusable `dispatch`-based component.