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: ENT
[{'content': 'Which drug is to be given in a truck driver for rhinitis ? \nSelect and explain. \nA. Cetrezine, B. Hydroxyzine, C. Promethazine, D. Buclizine', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Cetrezine", 'role': 'assistant'}]