Smiley Face Part 1
A smiley face rendered in SVG uses React components to draw a yellow circle, two black eyes, and a curved mouth. The face is centered with a transform, and the mouth is generated using D3’s `arc()` generator with specified inner and outer radii and angular range. D3 v6 and React 17 are loaded from CDNs, with all shapes positioned via offsets from the center. The code calls `ReactDOM.render` to mount the SVG, while inline comments and a console log indicate a simple, direct construction approach.