This interactive scatter plot visualizes the Auto MPG dataset from the UCI Machine Learning Repository. Users can dynamically select which data columns to map to the X and Y axes using dropdown menus. The visualization employs D3.js v5 with `scaleLinear`, `extent`, `axisLeft`, and `axisBottom` APIs to render axes and circles, with points appearing in an animated transition. The dropdown menus are constructed using a custom `dropdownMenu` function that binds `select` and `option` elements to column names. Data is loaded via `csv()` and parsed into numeric values for plotting.