Five circles represent apples in an SVG bowl. Clicking one turns its stroke black to mark it selected. The example demonstrates the D3 data join with enter, update, and exit selections, animating circle radius, position, fill, and stroke via `transition().duration()`. Using `scaleOrdinal` for color and size, it removes fruits on a timer, filters an apple, and changes one to a lemon, all rendered with `select` and `fruitBowl`.