DV1 made entirely by me
A smiling face is rendered as an SVG graphic, with its features composed of simple geometric components: a yellow circle for the head, two circles for eyes, an ellipse for a nose, and a D3 arc for the mouth. The React components organize these SVGs, with props controlling each feature’s position and size. D3’s `arc` API generates the mouth path, while React handles the composition and rendering of the face.