This pie chart shows the distribution of the three Iris flower classes in the dataset, with each slice labeled by class name and count. It also includes a second visualization, an area chart of sepal length versus sepal width, created from the same Iris dataset. The pie chart uses `d3.pie` for the arc layout, `d3.arc` for path generation, and `d3.scaleOrdinal` with `d3.schemeCategory10` for coloring. Data is loaded via `d3.csv` from two remote CSV sources, and the chart is rendered as SVG.