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: Gynaecology & Obstetrics
All are the causes of intrauterine growth retardation except : 
Select and explain. 
A. Anemia, B. Pregnancy induced hypeension, C. Maternal hea disease, D. None
D: None
Answer: D: None 
Explanation: Ans. is None