This interactive scatter plot visualizes the Iris dataset, plotting sepal and petal measurements against each other. Two dropdown menus let users select which flower attributes appear on the x and y axes, with the chart updating dynamically. Built with React and D3 v5, it uses d3.scaleLinear for scaling and d3.extent to compute domains, rendering axes as SVG groups with tick marks and a tooltip on each data point. The data loads asynchronously via d3.csv from a GitHub gist.