This pie chart displays the distribution of smokers versus non-smokers from a health information dataset, revealed through two labeled slices. The visualization aggregates the dataset’s `smoker` column by counting occurrences of “yes” and “no” values. Using D3 v7, the code applies the `d3.pie()` layout and `d3.arc()` generator to render SVG paths, with `d3.schemeCategory10` coloring each slice. A legend, constructed manually with SVG rectangles and text, maps colors to categories. The chart loads remote CSV data via `d3.csv()` and includes a fixed 400x400 pixel SVG canvas.