This scatter plot visualizes the Iris dataset, mapping sepal length to the x-axis and petal length to the y-axis, with species indicated by different filled symbols. The chart includes a shape legend and labeled axes, rendered using D3 v7 with a custom scatterplot module that relies on `scaleLinear` for the axes and `scaleOrdinal` for the symbol mapping. Data is loaded asynchronously from a CSV file, and the visualization updates dynamically as the data state transitions from loading to parsed.