This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Anaesthesia
[{'content': 'Ketamine contraindicated in all Except \nSelect and explain. \nA. Head injury, B. Hypeension, C. Asthma, D. Glaucoma', 'role': 'user'}, {'content': "Answer: C \nExplanation: (Refer: stoelting's pharmacology and physiology in anaesthetic practice, 5th edition, pg no.294)", 'role': 'assistant'}]