This scatterplot visualizes the relationship between urban population percent growth and mobile cellular subscriptions per 100 people across five North American countries. The visualization uses a qualitative color scale from ColorBrewer to distinguish each country, with data points rendered as semi-transparent circles. The chart employs d3.csv to load data, d3.scaleLinear for both axes, and d3-legend to create the categorical legend. The simplified dataset comes from the Corgis Global Development collection, and the SVG rendering is built entirely with D3 v7.