This scatter plot visualizes COVID-19 data, comparing the number of cases and deaths for four countries. The chart uses SVG circles to represent each country, with D3.js’s `scaleLinear` and `extent` functions to map the data to axes, and `axisLeft` and `axisBottom` to render the labeled axes. The code imports `csv` to load the data from `data.csv` and applies D3 v6 to build the visualization, with a clear title and axis labels.