This example shows a flexible line and area chart of student work over time, using D3 v5 within a React framework. It renders an SVG with smoothed, basis-curved paths to visualize the trend. The code scales time and linear axes using `scaleTime` and `scaleLinear`, and constructs the visual elements with `area` and `line` generators. Data is fetched from a CSV file hosted on GitHub, with date parsing handled by `d3.timeParse`.