This interactive scatter plot visualizes the Iris dataset, allowing users to select which flower measurements (sepal length, sepal width, petal length, petal width, or species) to plot on the x- and y-axes via dropdown menus. Written in React and rendered as an SVG, the chart uses D3’s `scaleLinear` and `extent` for axes and scaling, with custom tick marks and labels. A tooltip shows the x-value on hover. The code also imports the `react-dropdown` library for the menus.