This line chart visualizes the evolution of temperature in San Francisco over time, with time on the x-axis and temperature on the y-axis. The chart uses D3 v5 with an SVG rendering, employing `d3.scaleTime`, `d3.scaleLinear`, `d3.axisLeft`, `d3.axisBottom`, and a curve-basis line generator. Data is loaded from a CSV file, parsed with timestamps converted to Date objects, and displayed with a smooth, single-line path.