This interactive scatter plot visualizes the Iris dataset, showing measurements of sepal and petal dimensions for three species of iris flowers. Users can select which measurement to display on each axis using the dropdown menus, and the plot updates accordingly. Points are color-coded by species using a d3.scaleOrdinal with a viridis color palette. The visualization is built with D3 v5, using d3.csv, scaleLinear, axisBottom, and axisLeft to render the SVG scatter plot with axes, gridlines, and labels.