This visualization displays the average customer ratings for the top 15 product lines in a supermarket sales dataset, using horizontal bars ranked by rating. Each bar’s length encodes the rating value, while product-line names appear on the y-axis. Built with React and D3 v5, the example uses `d3.csv` to load the data, `scaleBand` and `scaleLinear` for axes, and renders SVG rectangles. Red gridlines and tick labels come from manually generated D3 scales, with margins and dimensions configured explicitly in the code.