This bar chart displays the ten most populous countries using horizontal bars, with population values in thousands. The visualization is built with React and D3 v5, using `d3.csv` to load data from `data.csv`, `d3.scaleLinear` and `d3.scaleBand` for scaling, and `d3.axisLeft` and `d3.axisBottom` for axes. Country names appear on the left, bars in steel blue, and a labeled population axis at the bottom. SVG rendering is used throughout.