This interactive scatter plot visualizes the Iris dataset, allowing users to explore relationships between sepal and petal measurements. Two dropdown menus, built with React and ReactDropdown, control which attributes are plotted on the x and y axes. The SVG rendering uses d3.scaleLinear for axis scaling and d3.scaleOrdinal for species-based coloring. Hovering over a circle reveals its x-axis value via a tooltip. The code demonstrates a React pattern for building interactive D3 visualizations, with components for axes, marks, and dropdowns.