This bubble chart displays clustered circles representing sales records, with each bubble’s size corresponding to Total Profit and country labels inside. Built with D3 v7, it loads data via `d3.csv` and uses the `d3.pack` layout to arrange circles hierarchically. A custom HTML tooltip appears on mouseover, showing the country and profit value, with hover styling changing the fill color. The visualization renders as SVG within a React-free HTML page, using `d3.select` and `join` for dynamic circle and text creation.