This interactive scatterplot displays the classic Iris flower dataset, allowing users to compare any two of the four measured features—sepal length, sepal width, petal length, and petal width—by selecting them from dropdown menus. Each of the 150 flowers is rendered as a semi-transparent circle colored by species, with a legend identifying the three Iris classes. Built with React and D3 v5, the visualization uses `d3.csv` to load the data, `d3.scaleLinear` and `d3.extent` to compute scales, and `d3.axisBottom` and `d3.axisLeft` for the axes. A `change` event listener re-renders the plot whenever the axis selections change.