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
Vacuum extraction is CONTRAINDICATED in: March 2013 
Select and explain. 
A. Premature babies, B. Hea disease, C. Microcephaly, D. Polyhydramnios
A: Premature babies
Answer: A: Premature babies 
Explanation: Ans. A i.e. Premature babies