{"version":"1.0","type":"rich","title":"Question2","description":"The visualization compares units sold in 2019 versus 2020 across multiple item categories using two filled area paths rendered in SVG. D3.js v7 fetches a CSV dataset via `fetch` and `d3.csvParse`, then constructs a band scale for the x-axis and a linear scale for the y-axis. The areas are generated with `d3.area()`, colored using `d3.scaleOrdinal` with `d3.schemeCategory10`, and accompanied by an HTML legend with color swatches. Axis titles and rotated tick labels clarify the data mapping.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/5c6cc4a0ab8049ebaf6a24e033a95ecd?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}