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': 'Mr. Surya  Kant was prescribed a  first generation   H1 antihistaminic drug. He should be advised to avoid: \nSelect and explain. \nA. Driving motor vehicles, B. Consuming processed cheese, C. Strenuous physical exertion, D. All of the above', 'role': 'user'}, {'content': 'Answer: A \nExplanation: First generation antihistaminic agents cause sedation and impairment of psychomotor function.', 'role': 'assistant'}]