This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Other topics and Adverse effects, Subject name: Pharmacology
[{'content': 'Route of administration of BCG for bladder cancer is: \nSelect and explain. \nA. Oral, B. Subcutaneous, C. Intravenous, D. None of the above', 'role': 'user'}, {'content': 'Answer: D \nExplanation: (Ref: Goodman & Gilman 11/e p1422) Intravesical route is used for BCG in the treatment of bladder carcinoma.', 'role': 'assistant'}]