Cars Scatter with Menu
This scatter plot displays weight versus horsepower for a dataset of cars, with each point representing a vehicle. A dropdown menu presents options labeled “a” through “d,” though the menu does not currently filter or alter the displayed data. The visualization uses D3 v5 with SVG rendering, employing `scaleLinear` for axes, `axisBottom` and `axisLeft` for ticks, and `csv` to load data from an external auto-mpg dataset. Fixed margins, gridlines, and labeled axes structure the chart, while circles use `fill` and `opacity` from stylesheets.