This bar chart displays quiz scores for the first 20 students from a CSV dataset, with each bar representing an individual student’s score. The visualization uses D3 v7’s `scaleBand` and `scaleLinear` to map student IDs and scores, while animated bars appear via `transition()`. Hovering a bar triggers a tooltip showing study hours and practice questions. The SVG includes grid lines, axis labels, and value labels, all styled with custom CSS classes.