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
A newborn baby was born with phocomelia. It results due to which drug taken by mother during pregnancy ? 
Select and explain. 
A. Tetracycline, B. Thalidomide, C. Warfarin, D. Alcohol
B: Thalidomide
Answer: B: Thalidomide 
Explanation: Thalidomide is highly teratogenic drug that can result in phocomelia as congenital anomaly.