This chart displays the marks of individual students as a pie chart, with each slice representing one student and the arc length proportional to their marks. A legend to the right identifies each student by name and their corresponding mark value. The visualization is built using D3 v5, employing the `pie` layout function to compute arc data, `arc` for generating SVG path definitions, `scaleOrdinal` with a category10 color scheme, and data loaded asynchronously from a JSON file via `json()`.