This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Gynaecology & Obstetrics
Drug that is used for fetal lung maturity is 
Select and explain. 
A. Dexamethasone, B. Folic acid, C. eclomethasone, D. one
A: Dexamethasone
Answer: A: Dexamethasone 
Explanation: * Betamethasone and dexamethasone are coicosteroids, also called glucocoicoids, that are given before bih (antenatally) to speed up a preterm fetuses lung development. * Either is used when a mother is in preterm labor and bih may occur in 24 to 48 hours REF : DUTTA BOOK OF OBESTETRICS