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
Using seatbelt is which level of prevention ? 
Select and explain. 
A. Primary, B. Secondary, C. Teiary, D. Rehabilitation
B: Secondary
Answer: B: Secondary 
Explanation: Ans. is 'b i.e., Secondary Primary prevention refers to intervention before event, to prevent it completely. Secondary prevention involves the lessening the extent of injury given that an event occur. Wearing a seatbelt will not prevent the collision but may lessen its effects. Thus it is secondary level of prevention.