This bubble chart shows the relationship between GDP per capita, life expectancy, and population for ten countries from a CSV file. The visualization encodes GDP per capita on the x-axis, life expectancy on the y-axis, and population as the bubble radius. Built with D3 v7, the chart uses `d3.scaleLinear` for both axes and `d3.scaleSqrt` for the bubble sizes, with `d3.axisBottom` and `d3.axisLeft` for ticks. Hovering over a bubble increases its opacity, and each bubble displays its country name as a label.