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
Which tocolytic drug results in pulmonary oedema (adverse effect)- 
Select and explain. 
A. Ritodrine, B. Indomethacin, C. Nifedipine, D. Atosiban
A: Ritodrine
Answer: A: Ritodrine 
Explanation: Ans. is 'a' i.e., Ritodrine