A line chart displays five data points, connected by a smooth basis-closed curve, within a zoomable and pannable SVG stage. The visualization uses React to manage the interface and D3 for scaling, curve generation, and the zoom interaction. The `d3.zoom` API, applied via a selection, updates a transform state that repositions and scales the chart group. The chart itself renders as a single path element, with its coordinates mapped through linear scales, against a plain background.