This scatter plot visualizes the Iris dataset, mapping petal width and sepal length on the x and y axes, with each species represented by a distinct D3 symbol shape. Built as a reusable D3 module, it uses `scaleOrdinal` to assign symbols, `scaleLinear` for axes, and `symbolGenerator` to generate SVG paths. The code draws axes with `axisLeft` and `axisBottom`, and loads data asynchronously via `d3.csv`.