This interactive scatter plot visualizes the Iris flower dataset, with dropdown menus to select which measurements appear on the x and y axes. A color legend distinguishes the three plant species. The visualization is built with React and D3 v5, using `scaleLinear` for axes, `scaleOrdinal` for colors, and D3’s `csv` loader to fetch and parse the data. SVG circles with tooltips render each data point, while custom React components handle the axes and legend.