This scatter plot visualizes the Iris dataset, mapping petal length on the x-axis against sepal length on the y-axis for each flower sample. The code loads the data via `d3.csv`, parses numeric values, and uses `d3.scaleLinear` with `d3.extent` to set the scales. Circles are drawn using SVG elements, with axes generated by `d3.axisLeft` and `d3.axisBottom`. Axis labels are added manually as SVG text elements. The plot renders full-screen, with a margin-based layout and a fixed point radius of 5 pixels.