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
"Critical path" in network analysis is 
Select and explain. 
A. Most expensive path in a network, B. Congested path in a network, C. Shoest path in a network, D. Longest path in a network
D: Longest path in a network
Answer: D: Longest path in a network 
Explanation: Critical path method: the longest path of the network is called critical path. If any activity along the path is delayed, the entire project will be delayed.Park 23e pg: 872