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
BCG is used for : 
Select and explain. 
A. Treatment of tuberculosis, B. Treatment of superficial bladder cancer, C. Treatment of anthrax, D. All of the above
B: Treatment of superficial bladder cancer
Answer: B: Treatment of superficial bladder cancer 
Explanation: BCG is used for immunization against TB. It is also used for the treatment of superficial bladder cancers. It is directly in­stilled in the urinary bladder for this purpose.