A bar chart displays United Nations population estimates for 2020 across ten countries, with country names on the y-axis and population values on the x-axis. The example integrates React (using `useState` and `useEffect` hooks) with D3 utilities, including `csv`, `scaleBand`, `scaleLinear`, and `max`. D3 loads the CSV data and computes scales, while React renders SVG elements—axis ticks, labels, and rectangles—within a single `<g>` group. The chart uses rendered SVG with manual gridlines and text labels.