This multi-series line chart examines the relationships between study hours, sleep hours, and exam scores for 187 students. The visualization displays three trends on a shared axis, with each series represented by a distinct color. Built with D3.js v7 and rendered as an SVG, the code uses `d3.text` and `d3.dsvFormat` to efficiently parse the comma-delimited CSV data file. The chart automatically detects column names and scales, providing a clean overview of how these academic factors correlate with performance.