A D3 scatter plot visualizes the Iris Dataset, mapping petal width to sepal length and using distinct symbols for each species. The SVG rendering populates a full-window plot with axes and a bold title, while the code modularizes the chart via a reusable `scatterPlot` function. It leverages `d3.csv` for data loading, `scaleLinear`, `scaleOrdinal`, `symbol`, `axisLeft`, and `axisBottom` APIs, with a light blue background styling.