{"version":"1.0","type":"rich","title":"Activity-7.2","description":"This example displays an area chart of car sales data loaded from a CSV file. The chart uses `d3.scaleBand` for the x-axis and `d3.scaleLinear` for the y-axis, with an area path rendered using `d3.area`. Hovering over invisible rectangles reveals a tooltip with the car model and sales value, implemented with `d3.select` and `.on('mouseover')` methods.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/17508ef194df42288a3d2b7d91291b77?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}