This interactive scatter plot visualizes the Iris flower dataset, letting users explore relationships between four measurements and species. Two dropdown menus, built with a custom D3 reusable menu component, change the x and y axes. The scatterPlot uses `d3.scaleLinear`, `d3.axisLeft`, `d3.axisBottom`, and `selection.join` with `d3.transition` to animate points as scales update, with circles entering by growing from radius zero and exiting removed.