This example presents the classic Iris dataset as a red circular scatter plot with axes, mapping petal length to the x-axis and sepal length to the y-axis. It uses D3 v7 to load the CSV data, apply `scaleLinear` scales derived from `extent`, and render SVG circles via a data join. Axes are generated with `axisLeft` and `axisBottom`. The visualization runs in a React framework context, though the visible code is vanilla JavaScript.