A pie chart visualizes company profits from a CSV dataset, encoding each company's profit value as a colored slice with a text label showing the profit amount. The legend lists company names alongside their corresponding colors and profit values. Built with D3 v5 in a React context, the code uses `d3.pie`, `d3.arc`, `d3.scaleOrdinal`, and `d3.csv` to fetch and render the SVG, with pie slices positioned via `arc.centroid` and legend items generated dynamically.