This interactive scatter plot of the classic Iris dataset lets users explore relationships between sepal and petal measurements by selecting which features appear on the x- and y-axes via dropdown menus. Points are colored by species using `d3.scaleOrdinal` and rendered as SVG circles with `d3.axisBottom` and `d3.axisLeft` grid lines. The visualization uses D3 v5 in a React dropdown component, reading CSV data from a remote GitHub source, and includes a fixed legend and axis labels.