This line chart displays the cost of sales from 2000 to 2013, with time on the x-axis and cost on the y-axis. The visualization uses D3 v5’s `scaleTime`, `scaleLinear`, `axisBottom`, `axisLeft`, and `line` API to render an SVG path with labeled axes and a title. Data is loaded as CSV from a GitHub gist, with year values parsed as dates and cost as numbers. The chart includes grid lines, axis labels, and a red stroke for the line path.