This area chart displays the average scores for math, reading, and writing subjects, sourced from a StudentsPerformance CSV dataset. The visualization uses D3 v7 with an SVG rendering approach, employing `d3.area` to generate the filled path and `d3.scalePoint` for the categorical x-axis. Individual data points are marked with circles, and tooltips are provided via appended `title` elements, showing exact average values on hover.