A line chart tracks cumulative COVID-19 deaths over time, using a time-scaled x-axis and linear y-axis. The React component `LineChart` builds an SVG path via `d3.line`, `scaleTime`, and `scaleLinear`, while `useData` fetches the Johns Hopkins CSSE global deaths CSV and aggregates daily totals. The black, 15-pixel-wide stroke renders the full dataset at window dimensions.