This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Social & Preventive Medicine
PE type of system is used for- 
Select and explain. 
A. Cost effective analysis, B. Cost benefit analysis, C. Network analysis, D. Input-Output analysis
C: Network analysis
Answer: C: Network analysis 
Explanation: Ans. is 'c' i.e., Network analysis Network analysis o A network analysis is a graphic of all events and activities to be completed in order to reach an end objective. o It brings greater discipline in planning. o The two common types of network technique are : a) Programme Evaluation and Review technique (PE) b) Critical Path method (CPM)