This interactive scatter plot visualizes the Iris dataset, allowing users to explore relationships between sepal and petal measurements. The visualization uses D3.js (v7) to render circles colored by species (Iris-setosa, Iris-versicolor, and Iris-virginica) on an SVG canvas. Users can dynamically change the X and Y axes via Bootstrap dropdown menus, which trigger a re-render of the scatter plot. The code uses D3's `scaleLinear`, `scaleOrdinal`, `axisBottom`, and `axisLeft` APIs to handle scaling, axes, and color encoding, with CSV data loaded from `iris.csv`.