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
Most common cause of low birth wt baby is 
Select and explain. 
A. Anemia, B. Infection, C. Prematurity, D. Diabetes
C: Prematurity
Answer: C: Prematurity 
Explanation: None