This interactive scatter plot visualizes the Iris dataset, allowing users to compare any two of the four flower measurements via dropdown menus for the x- and y-axes. The visualization is built with d3.v5, using SVG rendering and a custom scatterPlot module that employs d3.scaleLinear, d3.axisBottom, and d3.axisLeft. Data points are colored by species using d3.scaleOrdinal with a schemeCategory10 palette, and a semi-transparent color legend is rendered alongside the plot. The chart updates dynamically when the user selects different measurement columns.