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
Trial of labour is contraindicated in all of the following except : 
Select and explain. 
A. Primigravida, B. Hea disease, C. Cesarean section, D. PIH
A: Primigravida
Answer: A: Primigravida 
Explanation: Primigravida