This interactive scatter plot explores the Iris flower dataset, allowing users to compare any two of the four measured attributes (sepal and petal length and width). Selecting a new attribute from the dropdown menus redraws the plot, with points colored by species. The visualization uses D3.js v4 to create an SVG chart with a ggplot2-style gray background and gridlines. It employs `d3.scaleOrdinal` for the color scale and `d3.axisBottom` and `d3.axisLeft` for the axes, re-rendering the graph on each selection change.