A yellow smiley face is drawn in an SVG using D3.js v5, with eyes, eyebrows, and a mouth created via `circle`, `rect`, and `path` elements. The face is centered using a translated group, and the mouth is generated with the `d3.arc` helper. Eyebrows are positioned as rectangles, while the code demonstrates fundamental DOM manipulation through selections and attribute chaining. The example relies on static shapes without interaction, showcasing basic SVG rendering with D3’s `select` and `append` methods.