This pie chart visualizes the distribution of sepal lengths across iris species, with each segment colored using d3.scaleOrdinal and d3.schemeCategory10. The code loads data from a remote CSV file via d3.csv, then uses d3.pie and d3.arc to generate the SVG paths. A legend built with HTML div elements identifies each species, while text labels annotate the chart title and axis. The visualization employs D3 v7 with a straightforward SVG rendering approach.