A yellow circular face with black eyes, eyebrows, and a curved mouth is drawn and animated using D3.js v5. The code builds the face with SVG shapes, positioning elements relative to the center of a 960×500 canvas. Eyebrows rise and fall repeatedly via chained `transition().duration(2000)` calls on the parent group. The mouth is generated using the `d3.arc()` helper with specified inner/outer radii and angular span, while the `select` API attaches elements to the SVG root.