Pie_Chart_Question1
This visualization displays annual sales distribution for an Indian restaurant as a pie chart, with each slice representing a year’s total sales and labeled with the corresponding sales amount. A legend on the right maps each year to its color. The chart is built using D3 v6, fetching CSV data via `d3.csv`, aggregating sales with `d3.rollups` and `d3.sum`, and generating arcs with `d3.arc` and `d3.pie`. Colors are assigned using a `scaleOrdinal`, and all elements are rendered as SVG.