This pie chart displays average test scores for five assignments, with labels positioned at each slice's centroid and hover/click interactions that reveal exact values. The visualization uses D3 v5 (d3.pie, d3.arc, d3.scaleOrdinal) to convert CSV data into an SVG pie chart, with a tooltip triggered by mouse events. The configuration object in the code supports click and hover event handlers, while colors derive from the d3.schemeCategory10 palette.