This scatter plot visualizes the Iris dataset, mapping petal length on the x-axis and petal width on the y-axis. Each circle’s color corresponds to the iris species (setosa, versicolor, or virginica), which is determined through a switch statement. The plot uses D3 version 6.7.0, with `scaleLinear`, `extent`, `axisLeft`, and `axisBottom` for scaling and axes. Data is loaded via `d3.csv` from a GitHub-hosted CSV file. The SVG rendering includes green axis labels and is sized to the full browser window.