A friendly face built from basic SVG shapes, rendered with D3 v5 in a React framework. The code uses D3 selections to append circles, rectangles, and an arc-based mouth onto an SVG canvas. A yellow circle forms the head, black circles serve as eyes, and rectangles create eyebrows. A `transition().duration(2000)` animates the right eyebrow upward, while the left remains static, creating a subtle asymmetrical expression.