A minimal SVG face rendered from basic geometric shapes. D3.js v5 is used to select the root SVG element, center a group at the canvas midpoint, and append a yellow circle with a black stroke as the head. Two small circles form the eyes, each positioned via a translation transformation, while a red arc path, created with `d3.arc` using specified inner and outer radii and angle bounds, serves as the mouth. The example demonstrates foundational D3 selection, attribute setting, and shape construction within a bare HTML page using React as the framework.