This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Social & Preventive Medicine
[{'content': 'Inventory of material means which one of the following – \nSelect and explain. \nA. List of items procured, B. Stock distrubuted during a period, C. The quantum of material ordered for, D. Stock on hand at any given time', 'role': 'user'}, {'content': 'Answer: D \nExplanation: An inventory of material usually refers to the stocks of goods held by a company.\nIt is the list of goods owned (not procured)', 'role': 'assistant'}]