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: Unknown
Contraindications of ergometrine is - 
Select and explain. 
A. Diabetes mellitus, B. Excessive post-partum hemorrhage, C. Heart disease, D. Anaemia
C: Heart disease
Answer: C: Heart disease 
Explanation: Ans: C