A React-rendered SVG smiley face displays a yellow circle with a black outline, two black eyes, and a curved mouth. The layout centers the face in a 960 by 500 pixel viewport, using fixed offsets for eye placement and an arc generator from d3.v7 to shape the smile. The code relies on React 18 and D3’s `arc()` API, with all positions computed as constants before rendering. The face is drawn entirely from primitive SVG shapes, with no external data source, and the mouth’s stroke width and radius are defined numerically.