This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Lens, Subject name: Ophthalmology
Drug among the following causing cataract is 
Select and explain. 
A. Amikacin, B. Dexamethasone, C. Chloramphenicol, D. Penicillin
B: Dexamethasone
Answer: B: Dexamethasone 
Explanation: Drugs causing cataract:i. Coicosteroidsii. Phenothiazines and other antipsychoticsiii. Topical mioticsiv. Amiodaronev. StatinsRef. Aravind FAQs in Ophthalmology(first edition) Pg-310