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
L–Thyroxine is used in: 
Select and explain. 
A. Thyroid storm, B. Cretinism, C. Endemic goiter, D. Grave's disease
B: Cretinism
Answer: B: Cretinism 
Explanation: None