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
Primary prevention- 
Select and explain. 
A. Marriage counseling, B. Early diagnosis and treatment, C. Pap smear, D. Self breast examination
A: Marriage counseling
Answer: A: Marriage counseling 
Explanation: Ans. is 'a' i.e., Marriage counseling