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: Anaesthesia
[{'content': 'The following increases intraocular pressure: \nSelect and explain. \nA. Thiopentone, B. Althesin, C. Ketamine, D. Barbiturate', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ketamine', 'role': 'assistant'}]