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
Which among the following is a mode of primary prevention? 
Select and explain. 
A. Pap smear collection, B. Marriage counselling, C. Breast examination, D. Rehabilitation
B: Marriage counselling
Answer: B: Marriage counselling 
Explanation: Since marriage counselling is a form of health education it is a mode of primary prevention. Both pap smear collection and breast examination is a mode of secondary prevention as the disease has already occurred and rehabilitation is a teiary mode of prevention. Ref: Park, Edition - 21, Page - 39