This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Concept of Control, Subject name: Social & Preventive Medicine
All of the following comes under primary prevention EXCEPT 
Select and explain. 
A. Pap smear, B. Helmets, C. Contraception, D. Vaccines
A: Pap smear
Answer: A: Pap smear 
Explanation: Ans. (a) Pap smearRef : K. Park 23rd ed. / 41, 385* PRIMARY PREVENTION is the action taken prior to the onset of disease which removes the possibilities of disease occurrence.* Modes of intervention :# Health promotion# Specific protection* It is applicable for "risk factors are present but disease has not yet taken place"* Pap smear is a screening test, which comes under secondary level of prevention.