In the critical path method, illness is the maximum if the causal factors affect a paicular period of life. The vulnerable period is -
-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>
Shoest
Longest
Cheapest
Costliest
Health education & planning