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: Dental
[{'content': 'In hypertensive patients, which appointments are preferred: \nSelect and explain. \nA. Morning, B. Evening, C. Afternoon, D. Any appointment', 'role': 'user'}, {'content': 'Answer: C \nExplanation: In afternoon, the BP is lowest.', 'role': 'assistant'}]