{"version":"1.0","type":"rich","title":"Task 8 q2_1","description":"This example shows a stacked bar chart of student marks across four subjects—Math, Science, History, and English—using data from a CSV file. The visualization renders as SVG, with each bar segment colored by subject via a D3 ordinal scale. Hovering a segment reveals a tooltip with the exact percentage, using mouse events. The chart includes axes, a legend, and a title, all built with D3 v7’s `scaleBand`, `scaleLinear`, `d3.stack`, and `d3.axisLeft`/`d3.axisBottom`.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/9e9588d1fd814c368f2887b36a35e417?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}