This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Health education & planning, Subject name: Social & Preventive Medicine
[{'content': 'Critical path takes - \nSelect and explain. \nA. Maximum time, B. Minimum time, C. Intermediate time, D. None', 'role': 'user'}, {'content': "Answer: A \nExplanation: - Critical path method : the longest path of the network - if any activity along the critical path is delayed, the whole project will be delayed. Reference : Park's textbook of preventive and social medicine, 23rd edition, pg no:872 <\\p>", 'role': 'assistant'}]