This pie chart visualizes the distribution of loan types from a CSV dataset loaded via `d3.csv`. Each slice is generated using `d3.pie()` and rendered as an SVG path with `d3.arc()`, colored by `d3.scaleOrdinal` and `d3.schemeCategory10`. The chart includes a legend with colored rectangles and text labels, while slice labels are placed using the arc’s `centroid` method. The code uses D3 v6, an SVG container, and explicit width, height, and margin settings.