This bar chart visualizes Amazon Prime’s monthly basic cost across twelve countries, retrieved from a CSV file. Built with React and D3 v5, it uses `scaleBand` and `scaleLinear` to map country names to horizontal bars and cost values to widths. The SVG rendering includes custom gridlines and axis ticks generated via `xScale.ticks()`, while the data is loaded asynchronously with `csv()` and sliced to the first twelve rows.