This scatter plot visualizes the Iris dataset, encoding petal length and width on the x- and y-axes, with circles colored by species (setosa in green, virginica in orange, versicolor in blue). It uses D3 v6 to load CSV data, create linear scales with `scaleLinear`, and render SVG circles via `selectAll().join()`. Axes are drawn with `axisLeft` and `axisBottom`, while rotated text labels annotate the axes. Although `rx` and `ry` attributes are set from sepal measurements, the circles remain uniformly sized, and the code does not apply any other encodings or interactions.