This interactive scatter plot displays the Iris dataset, revealing the distribution of flower measurements across three species. Users select which measurement appears on each axis via two dropdown menus, instantly re-rendering the plot. The visualization distinguishes species by color and includes a legend. Built with D3 v5, the code uses `select`, `csv`, `scaleLinear`, `scaleOrdinal`, `axisBottom`, `axisLeft`, and `extent` to create the SVG chart, with a custom `dropDownMenu` component for the interactive controls.