This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Drugs, Subject name: Medicine
[{'content': 'Which one of the following drugs of abuse is most typically associated with the illustrated complication?? \nSelect and explain. \nA. Ketamine, B. Heroin, C. Cocaine, D. Phencyclidine', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Answer C. CocainePerforation of the nasal septum and palate are well recognized complications of intranasal cocaine use.', 'role': 'assistant'}]