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
[{'content': 'The following local anaesthetic raises BP instead of tending to cause a fall : \nSelect and explain. \nA. Cocaine, B. Dibucaine, C. Lignocaine, D. Procaine', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]