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
Mr. Surya Kant was prescribed a first generation H1 antihistaminic drug. He should be advised to avoid : 
Select and explain. 
A. Driving motor vehicles, B. Consuming processed cheese, C. Strenuous physical exertion, D. All of the above
A: Driving motor vehicles
Answer: A: Driving motor vehicles 
Explanation: The first generation antihistaminic agents cause sedation and impairment of psychomotor function.