A bubble chart displays Paralympic medal counts by country, plotting total medals on the x-axis and gold medals on the y-axis. Circle size encodes total medals, while color distinguishes countries, with a legend listing all nations. The visualization uses D3 v7’s selection methods and scaleOrdinal for color mapping, plus linear scales for positioning and radius. Animated tooltips reveal silver and bronze counts on hover. Data comes from the provided CSV file, rendered as SVG circles with mouseover and mouseleave event handlers for interactivity.