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 method is - \nSelect and explain. \nA. Cost effective analysis, B. Cost benefit analysis, C. Network analysis, D. Input-output analysis', 'role': 'user'}, {'content': "Answer: C \nExplanation: - a network is a graphic plan of all events and activities to be completed in order to reach an end objective. - the two common types are of network technique are ; PE and CPM. -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'}]