This bar chart displays the test scores of ten students, labeled A through J, with each score plotted on a scale from zero to one hundred. The visualization directly compares individual performance, showing that student E has the highest score at 95, while student C has the lowest at 66. The chart uses SVG rendering with D3 v7, employing `d3.scaleBand` for the categorical x-axis and `d3.scaleLinear` for the numeric y-axis. Bars are drawn as SVG `rect` elements, and the chart includes labeled axes generated by `d3.axisBottom` and `d3.axisLeft`, along with a title. The data is hardcoded in the script.