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
Main intervention in primordial prevention ? 
Select and explain. 
A. Immunization, B. Education, C. Screening, D. Chemoprophylaxis
B: Education
Answer: B: Education 
Explanation: Ans. is 'b' i.e., Education o The main intervention in primordial prevention is through individual and mass education.