This bar chart displays the populations of China, India, and the United States using horizontal bars. The chart encodes population values along the x-axis and country names along the y-axis. It is built with D3 v5, using `scaleLinear` and `scaleBand` for scales, `axisLeft` and `axisBottom` for axes, and SVG `rect` elements for the bars, which are filled with a steelblue color. Data is loaded from a CSV file.