This scatterplot displays the Iris flower dataset, allowing users to explore relationships between sepal and petal measurements through two dropdown menus that control the x- and y-axes. Points are colored by species, and hovering over the color legend highlights only that species while dimming the rest. Built with React and D3 v5, the visualization uses SVG rendering, d3.scaleLinear for axes, d3.scaleOrdinal for categorical colors, and d3.csv for data loading.