This interactive scatter plot visualizes the Iris dataset, displaying four measurements (sepal and petal length/width) with species color-coded. Dropdown menus dynamically select which attributes map to the x and y axes, while hovering over the color legend highlights the corresponding species by increasing its opacity and dimming others. Built with React and D3 v5, it uses `scaleLinear` for axes, `scaleOrdinal` for colors, and SVG circles rendered from CSV data.