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 weight 
Select and explain. 
A. Intrauterine growth Retardation, B. Chromosomal Abnormalities, C. Anemia in mother, D. Prematurity
D: Prematurity
Answer: D: Prematurity 
Explanation: None