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
Chemoprophylaxsis is..................... prevention - 
Select and explain. 
A. Primordial, B. Primary, C. Secondary, D. Teiary
B: Primary
Answer: B: Primary 
Explanation: Ans. is 'b' i.e., Primary