This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Concept of health and disease, Subject name: Social & Preventive Medicine
Diseases under WHO surveillance include 
Select and explain. 
A. Rabies, B. Mumps, C. Hepatitis, D. Tetanus
A: Rabies
Answer: A: Rabies 
Explanation: Diseases under WHO surveillance Polio Rabies Relapsing fever Influenza Salmonella Malaria Louse born typhus Ref: Park's Textbook of Preventive and Social Medicine; 24th edition