Smiley Face Part 1
A yellow smiley face is drawn in the center of an SVG canvas with two eyes and a mouth. The face is constructed using React components that render SVG elements, with D3's `arc` generator used to create the mouth path. Circle elements define the head and eyes, while the arc is positioned using `startAngle` and `endAngle`. The rendering approach uses hardcoded dimensions and offsets for the facial features.