This stacked bar chart displays the weighted scores of universities across five categories: teaching, research, citations, industry income, and international outlook. The chart reads the data from `university.csv` and renders it as an SVG, with each bar representing a university and segmented by score category. Users can interactively sort the universities by any of the five scores, in either ascending or descending order, using dropdown menus. The visualization uses D3 v4 APIs including `d3.scaleBand`, `d3.scaleLinear`, `d3.scaleOrdinal`, `d3.stack`, and `d3.axisBottom` to construct the chart.