This scatter plot visualizes the Iris dataset, mapping petal length on the x-axis and petal width on the y-axis, with each point colored by species (green, purple, or red). It also encodes sepal length and width via the `rx` and `ry` attributes, though these are not visually apparent since the circles use a fixed radius. Built with D3 v6, the code uses `d3.csv` to load data, `d3.scaleLinear` for axes, and `d3.axisLeft` and `d3.axisBottom` for rendering the SVG chart.