A line chart displays the cost of sales from 2000 to 2013, sourced from a local CSV file. The visualization uses D3 v7 to render an SVG, mapping years on the x-axis and cost values on the y-axis. The line, drawn with a stroke path, is created using `d3.line()`, with axes added via `d3.axisBottom` and `d3.axisLeft`. Axis labels are styled with red fill and large font.