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
Drug of choice for medical termination of pregnancy in a second gravida with asthma at 16 weeks gestation is : 
Select and explain. 
A. Prostaglandin, B. Ethacridine lactate, C. Hypeonic saline, D. Intra-amniotic dexamethasone
C: Hypeonic saline
Answer: C: Hypeonic saline 
Explanation: Hypeonic saline