This interactive scatter plot displays the Iris dataset, allowing users to select which measurements to plot on the x and y axes via two dropdown menus. Built with D3 v5 and React, it renders SVG circles, with axes, labels, and a tooltip generated through custom components. The code uses D3’s `scaleLinear`, `extent`, and `csv` for data loading and scaling, and the `react-dropdown-browser` library for the menus.