Assess students' ability to apply systems thinking and stakeholder analysis to design resilient supply‑chain interventions that enhance urban food security. The quiz will require: mapping key system components, flows, and feedbacks; identifying and prioritizing stakeholders and their incentives; diagnosing vulnerabilities under shocks (e.g., transport disruption, market volatility, policy change); proposing one or two evidence‑based interventions (e.g., diversification, localization, cold‑chain investment, information systems) with mechanisms, trade‑offs, and measurable indicators; and outlining a stakeholder engagement and implementation plan. Scoring emphasizes applied analysis, clarity of reasoning, and feasibility within urban constraints.