This scatter plot visualizes the relationship between year and life expectancy using D3.js scales and SVG circles. The React app fetches a CSV file, auto-detects its delimiter (tab or comma), parses numeric columns, and renders data from the included dataset featuring India’s life expectancy from 2000 to 2023. The `viz.js` module maps values to x/y coordinates via `scaleLinear` and `extent`, with status messages for loading, errors, or empty data. The SVG includes white background, axis labels, and the visualization title.