This interactive scatter plot visualizes the Iris dataset, allowing users to explore relationships between sepal and petal measurements. Users select X and Y axes via dropdown menus, and hover over the categorical color legend to highlight points of a particular Iris species while fading others. The visualization uses React with hooks for state management, d3.scaleLinear and d3.scaleOrdinal for scales, and renders SVG marks via React components. Data is loaded asynchronously with d3.csv.