Five circles represent fruit in a bowl, rendered as SVG by D3 v5. Clicking a fruit selects it, highlighting it with a black stroke. A data join with keyed enter, update, and exit transitions animates shape changes: plums shrink and disappear, and one plum transforms into a lemon. The example uses d3.scaleOrdinal for color and radius, and transitions via `selection.transition()` with a duration of 1000ms.