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: Pharmacology
Ergometrine is not used for initiation of labour because - 
Select and explain. 
A. Show onset of action, B. Fetal hypoxia, C. Increases blood pressure, D. Act on D2 receptors to cause vomiting
B: Fetal hypoxia
Answer: B: Fetal hypoxia 
Explanation: Ans. is 'b' i.e., Fetal hypoxia