Which visualization best shows urban share vs rural share over time when using LDS data?

• A. Pie chart of current year
• B. Bar chart of population counts
• C. Line chart of urban share vs rural share over time
• D. Scatter plot of GDP vs life expectancy

Answer: (C)

To compare how urban and rural shares change over time, you want a visualization that shows how each share evolves year by year. A line chart that plots urban share and rural share on the same time axis does exactly that. It clearly displays trends for both categories, makes it easy to compare their trajectories, and shows how they relate as urban share rises while rural share falls. Since these shares are proportions that add up to 100%, the lines often move in opposite directions, so you can see the shift in the balance at a glance.

The other options don’t fit as well. A pie chart only captures a single year, not the progression over time. A bar chart of population counts shows absolute numbers rather than the proportional shares and isn’t ideal for plotting changes across many years. A scatter plot of GDP vs life expectancy relates two different variables and ignores time and the share distribution.