This interactive scatter plot visualizes the Auto MPG dataset from the UCI Machine Learning Repository, displaying car attributes as circles. Users select which data columns map to the X and Y axes via two dropdown menus, built with a reusable `dropdownMenu` function. The plot, rendered as SVG with D3 v5, uses `scaleLinear`, `extent`, `axisLeft`, and `axisBottom` for scales and axes. Each circle animates into position using a `transition().duration(2000).delay()` sequence, with axis labels updating dynamically upon menu selection.