This example demonstrates a smiling face constructed from basic SVG shapes using React and D3. The visualization shows a yellow circle with a black stroke, two black eyes positioned symmetrically, and a curved mouth drawn as an arc. The React component defines the layout with specific dimensions and offsets for each facial element, while the `d3.arc()` API generates the mouth’s path data with defined inner and outer radii and angular start and end values. All shapes render within a single SVG container, with the group translated to center the face on the canvas.