This line chart visualizes revenue trends for five selected states—California, New York, Texas, Florida, and Illinois—from 2020 to 2023. It uses D3.js v7 to load comma-separated text data, parse it, and render an SVG with a multi-line chart. The code applies `d3.scaleLinear` for axes, `d3.line` with `d3.curveLinear` for path generation, and `d3.scaleOrdinal` with `schemeCategory10` for colors. Axes are drawn using `d3.axisBottom` and `d3.axisLeft`, with a legend and title included.