Let's make a face with D3.js!
D3.js v5 draws a yellow circular face with two eyes, animated eyebrows, and a mouth built from an arc path, all centered in an SVG. The eyebrows use chained transitions to move up and down over two-second intervals. The code employs `d3.select`, `d3.arc`, and SVG shapes—circle, rect, and path—to construct the figure, with a red tongue added via a second arc path. Static attributes set positions, while transitions handle the subtle eyebrow animation.