This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nutrition and health, Subject name: Social & Preventive Medicine
Medium term intervention for Vitamin A prphylaxis is - 
Select and explain. 
A. Measles immunization, B. Vit A supplementation, C. Foification of food, D. Green leafy vegetables
C: Foification of food
Answer: C: Foification of food 
Explanation: - medium term intervention for vitamin A prophylaxis is foification of ceain foods with vitamin A. - addition of vitamin A to dalda in India is a typical example. Reference : Park's textbook of preventive and social medicine, 23rd edition, pg no:641 <\p>