This interactive scatter plot visualizes the Iris dataset, letting users choose which attributes appear on the X and Y axes via dropdown menus. A color legend categorizes points by species, and hovering over a legend entry highlights only the matching points while fading others. Built with React and D3 v5, the chart uses `d3.scaleLinear` for axes, `d3.scaleOrdinal` for colors, and SVG rendering for marks and interactive legend controls.