Smiley Face Part II
A yellow smiley face is drawn as a large circle with two eyes and a mouth, centered on a 960 by 500 SVG canvas. The face is constructed using React components, with the outer face and eyes as SVG circles and the mouth as a D3 `arc` path generated by `d3.arc()`. All shapes are positioned relative to the center using a group translation, with fixed pixel offsets for the eyes and mouth radius. The rendering relies on React 16.9 and D3 v7.6.1.