This scatter plot visualizes avocado pricing and sales data from Kaggle's Hass Avocado dataset. Two dropdown menus let users select which data columns to plot on the x- and y-axes, dynamically updating the chart. The visualization uses D3 v5 to render SVG circles with animated transitions, scaling axes via `scaleLinear`, drawing axes with `axisLeft` and `axisBottom`, and handling menu interactions with custom `dropdownMenu` and `colorLegend` functions.