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': 'The maximum occlusal force exerted by a patient, who is edentulous would be? \nSelect and explain. \nA. 50 Psi, B. 150 Psi, C. 250 Psi, D. > 300 Psi', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]