This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Breast Milk & Breast Feeding, Subject name: Pediatrics
The most effective intervention to reduce newborn and child deaths is? 
Select and explain. 
A. Exclusive breastfeeding for 1st 6 months, B. Vitamin D supplementation for 1st year of life, C. Iron supplementation from 6 to 12 months age, D. Temperature control in the neonatal period
A: Exclusive breastfeeding for 1st 6 months
Answer: A: Exclusive breastfeeding for 1st 6 months 
Explanation: The most effective intervention to reduce newborn and child deaths: Exclusive breastfeeding for 1st 6 months It has reduces moality by 13%