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
Cyclic trends are seen in which of the following - 
Select and explain. 
A. Rabies, B. Measles, C. Cholera, D. Hepatitis
B: Measles
Answer: B: Measles 
Explanation: None