This chart displays the population of 20 countries in 2010 as a horizontal bar chart, using the D3v5 scaleBand and scaleLinear APIs to position bars along y- and x-axes. Rendered as SVG via React components, it plots each country’s population with formatted tick labels (e.g., abbreviating millions as “B”) and a tooltip showing the exact value. The data is loaded from a remote CSV file using d3.csv.