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
In the critical path method, illness is the maximum if the causal factors affect a paicular period of life. The vulnerable period is - 
Select and explain. 
A. Shoest, B. Longest, C. Cheapest, D. Costliest
B: Longest
Answer: B: Longest 
Explanation: -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>