Five fruit circles sit in a row, each filled red for apples or yellow for lemons. Hovering over a circle selects it with a black outline, and hovering away deselects it. The visualization uses D3 v5 with SVG and animated transitions to smoothly change circle radius, position, and fill. The `fruitBowl` module maps fruit types to colors and sizes using `scaleOrdinal`, while `setSelectedFruit` updates the selection state on `mouseover` and `mouseout` events.