A line chart displays electric vehicle sales growth over time, plotting yearly sales in thousands as a steelblue line with circular markers on an SVG canvas. The visualization loads CSV data from a GitHub gist and scales the x-axis by year and y-axis by sales volume using d3.scaleLinear, with axes generated via d3.axisBottom and d3.axisLeft. A d3.line generator constructs the path, while d3.csv handles data parsing and d3.extent computes the domain.