A scatterplot of the Iris flower dataset renders sepal and petal measurements as circles, with dropdown menus above the chart to select which numerical attribute appears on the x- and y-axes. The React app manages the selected attributes in state, and D3’s `scaleLinear`, `extent`, and `nice` compute the axes from the CSV data loaded via `d3.csv`. SVG circles and axis ticks are generated by React components, with hover tooltips supplied by SVG `<title>` elements.