This visualization shows the relationship between GDP per capita, life expectancy, and population for ten countries. Each bubble’s x and y positions represent GDP and life expectancy, while the bubble radius encodes population size, with a categorical color scale distinguishing countries. Using D3 v7, the code loads data from a CSV file, scales values with `d3.scaleLinear`, renders SVG circles, and adds interactive tooltips that display country-specific details on mouseover. Axis labels and a title clarify the chart’s context, and the animation of tooltip transitions enhances user exploration.