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
Fleeting painful sores are caused by 
Select and explain. 
A. overextended denture boarders, B. occluding face height being too great, C. malocclusion, D. none of the above
B: occluding face height being too great
Answer: B: occluding face height being too great 
Explanation: None