This bubble chart visualizes the relationship between GDP, social support, and happiness scores across countries. Each circle represents a country, with its x-position indicating GDP, y-position indicating social support, and radius scaled by happiness score. The visualization uses D3.js v7’s `scaleLinear` for axes and bubble sizing, along with `scaleOrdinal` and `interpolateTurbo` for country-based coloring. Interactive tooltips appear on mouseover, showing the country name. The chart includes a legend for happiness scores and a color-coded list of countries, with SVG rendering.