This area chart visualizes the relationship between Age and Marks, using a light blue fill with a blue stroke to represent the trend. The SVG graphic is rendered using D3 v7, with data loaded from an external CSV file hosted on GitHub. The code sorts the data by age and constructs the area using the `d3.area` generator. Linear scales (`d3.scaleLinear`) map the age and marks values to pixel coordinates, while `d3.axisBottom` and `d3.axisLeft` add the axes, and text elements label the chart, its axes, and title.