This pie chart visualizes the top 10 countries by deaths from air pollution in 2020, with each slice sized by the number of deaths and labeled with a shortened value (e.g., “123.4K”). The chart is built using D3 v5, using the `pie` layout to compute arc segments, `arc` to generate the sector paths, and `scaleOrdinal` to assign a fixed color palette to the countries. A legend on the right maps each color to its country and corresponding death count. The data is fetched from a CSV via the `csv` function, and the SVG canvas is rendered with the chart centered at (250, 250) with a 250-pixel outer radius.