This example demonstrates a smiley face rendered as an SVG graphic using React for component structure and D3’s `arc` function to create the mouth path. The face consists of a yellow circle with a black stroke, two eye circles, and a curved mouth, all positioned relative to the center. The code uses React 16.9 and D3 v5, with the SVG elements transformed into place via a `g` element. It shows how D3 geometric helpers can be combined with React’s declarative JSX syntax to build static visualizations.