This interactive scatter plot uses React and D3 v7 to visualize the Iris flower dataset, with dropdown menus for selecting which numeric attributes (sepal length, sepal width, petal length, or petal width) map to the x- and y-axes. The code scales the data with `d3.scaleLinear` and `d3.extent`, renders axes as SVG groups, and draws circle marks with native `<title>` tooltips. The data loads from a CSV via `d3.csv` and the view updates reactively through `useState` and component re-rendering.