This scatter plot visualizes the Iris dataset, displaying sepal and petal measurements as individual circles. Users can select any of the four measurement attributes or species for the X and Y axes via dropdown menus built with ReactDropdown, with axis labels updating accordingly. The visualization uses React hooks (useState, useEffect) to manage state and load data via d3.csv, while d3.scaleLinear, d3.extent, and d3.max power the SVG rendering. Axes and marks are custom React components, with d3.ticks generating tick marks and native SVG <title> elements providing hover tooltips formatted using d3.format.