This interactive scatter plot visualizes the Iris dataset, rendered as an SVG using React and D3 v5. It displays sepal width along the y-axis and a user-selected attribute on the x-axis, chosen via a dropdown menu. The code uses D3’s `scaleLinear`, `extent`, and `format` for axis scaling and tick formatting, with custom `Marks` and axis components. Data is fetched as CSV using `d3.csv`, with styles defined in CSS for axes and labels.