This interactive scatter plot displays the classic Iris dataset, letting users explore relationships between sepal and petal measurements by selecting variables from dropdown menus. A color legend maps the three Iris species to distinct hues; hovering over a species name highlights only those data points while fading all others, making group distinctions immediately apparent. The visualization is built with React and D3 v5, using `scaleLinear` for axes, `scaleOrdinal` for the categorical color mapping, and native SVG circles for marks. The data is loaded as CSV using D3's `csv` utility.