This interactive scatter plot visualizes the Iris dataset, letting users explore relationships between sepal and petal measurements. Dropdown menus dynamically switch which attribute appears on each axis, with points colored by species (setosa, versicolor, virginica). The visualization uses D3 v6 scales (scaleLinear, d3.extent), axes (axisBottom, axisLeft), and SVG circles, while the data loads from a CSV URL via d3.csv. Dropdown interactions are handled through D3's selection and event binding methods.