{"version":"1.0","type":"rich","title":"Q2. A2.","description":"This area chart visualizes population change in China over time, highlighting the overall upward trend in population numbers. The visualization loads data from a CSV file, filters it to only China, and maps years to the x-axis while population values are plotted on the y-axis. Built with d3.v7, the chart uses `d3.scaleBand` and `d3.scaleLinear` for axes, and renders the populated area as a filled SVG path using `d3.area`. The chart includes rotated x-axis labels and axis titles for clarity.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/fef2925db1cf412e8f7983f7d178db42?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}