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
Encephalopathy can occur as complication of which vaccine ? 
Select and explain. 
A. OPV, B. Rubella, C. Measles, D. BCG
C: Measles
Answer: C: Measles 
Explanation: Ans. is 'c' i.e., Measles