This interactive scatter plot visualizes the Iris dataset, showing four flower measurements (sepal and petal length/width) as adjustable axes. Dropdown menus allow the user to select which measurement appears on the x- and y-axes, with axis labels updating accordingly. The React application uses D3’s `scaleLinear`, `extent`, and `format` for scaling and tick formatting, rendering SVG circles with tooltips via the `Marks` component. Data is loaded asynchronously from a CSV using `d3.csv`, and the visualization is built in React with D3 for scales and axes.