This interactive scatter plot visualizes the classic Iris Dataset, displaying measurements of sepal length, width, petal length, and petal width for three iris species. Users can change which measurement appears on each axis via dropdown menus built with React and the `react-dropdown-browser` library. The visualization, rendered as SVG with D3 v5, uses `d3.scaleLinear` for axes and `d3.extent` for domain calculation, while circles are colored by species using a predefined color mapping.