The x-axis of the line graph represents the passage of time, indicating years from 1200 to 1500. This chronological scale illustrates the changing population sizes of European cities, including Paris, London, and Palermo. The correct answer is B.
The x-axis of this line graph represents the passage of time, specifically in years. It serves as a chronological scale, illustrating the population trends of European cities from the year 1200 to 1500.
The graph tracks the population sizes of Paris, London, and Palermo over this timeframe, offering a historical perspective on urban demographic shifts.
The data points on the x-axis are organized in sequential order, allowing viewers to observe changes and trends in population dynamics over the centuries, offering insights into the growth and development of these European cities during the specified period. Option B is the correct answer.