This scatter plot visualizes the Iris dataset, plotting sepal length on the x-axis against sepal width on the y-axis for 150 individual flowers. The visualization is built using `d3.scaleLinear` for axis scaling and `d3.extent` to compute data domains, with React managing the SVG element lifecycle and state. It loads CSV data asynchronously via `d3.csv`, renders axes with `d3.axisBottom` and `d3.axisLeft`, and draws circles for each data point. The chart includes labeled axes and uses a fixed black fill for all points.