This scatter plot visualizes the Iris Dataset, mapping petal length and width to the x- and y-axes, with each point colored by species (setosa in blue, versicolor in red, and virginica in black). The code uses D3 v6’s `d3.csv`, `scaleLinear`, `extent`, `axisLeft`, and `axisBottom` to load data from a remote CSV, build linear scales, render axes, and draw circles via SVG. The plot fills the browser window, and points are fixed at a radius of 5 pixels, while sepal measurements are stored but not visually encoded.