This interactive scatter plot visualizes the Iris flower dataset, showing measurements of sepal and petal length and width for three species. The visualization uses d3.select, d3.scaleLinear, d3.axisBottom, d3.axisLeft, and d3.scaleOrdinal to render circles colored by species (red for setosa, blue for versicolor, green for virginica) with an opacity of 0.3. Users can dynamically select which measurements to plot on the x and y axes via dropdown menus. The SVG rendering includes grid lines, labeled axes, and a title, with data loaded from a local CSV file.