This interactive scatter plot displays the classic Iris dataset, showing relationships between sepal and petal measurements across three iris species. Users can dynamically select which measurements to plot on the x- and y-axes through dropdown menus. The visualization uses D3 v5 with SVG rendering, employing `scaleLinear`, `axisBottom`, and `axisLeft` for axes, while data points transition smoothly via `transition().duration(1000)`. Each species is color-coded—red, green, or blue—and a legend identifies the classes.