A horizontal bar chart displays the top 15 U.S. states by female teenager birth rate, with each bar's length proportional to the state's rate. The visualization uses React for the component structure and D3 v5 for data loading via `d3.csv`, scaling with `d3.scaleBand` and `d3.scaleLinear`, and rendering SVG bars and tick labels. The chart reads data from a gist-hosted CSV file, styling the page with a green background and blue grid lines.