This interactive scatter plot visualizes the Iris dataset, allowing users to dynamically select which flower measurements appear on the X and Y axes through dropdown menus. Built with React and D3 v6, the reusable `scatterPlot` component renders circles in SVG using `d3.scaleLinear` and `d3.extent`, with animated transitions updating positions via `d3.transition()`. The `menu` component leverages D3's `dispatch` pattern to handle axis changes, while axes redraw with `d3.axisLeft` and `d3.axisBottom`.