This interactive pie chart explores mental health survey data, letting users filter by university and toggle between demographic attributes and well-being metrics. The visualization displays average metric scores as proportional arc slices, with hover tooltips revealing exact values. Built with D3.js, it uses `d3.pie` and `d3.arc` to generate paths, `d3.rollups` for data aggregation, and `schemeCategory10` for color encoding. Dropdown menus control attribute, metric, and university selection, while CSS transitions provide visual feedback on hover.