This stacked bar chart displays customer satisfaction ratings for six airlines, broken into five rating categories from "Below 5" to "Above 8.5" across a horizontal percentage scale. D3.js (v7) fetches the CSV data via `d3.csv()`, then uses `d3.stack()` with `d3.scaleOrdinal` for color coding, `d3.scaleLinear` for the x-axis, and `d3.scaleBand` for the y-axis to render the SVG bars. Each airline’s proportional distribution of ratings is shown as stacked segments, with a legend below clarifying the color-to-rating mapping.