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: Surgery
The fracture of diaphysis involves which of the following bones? 
Select and explain. 
A. Skull bones, B. Long bone, C. Sternum, D. Ribs
B: Long bone
Answer: B: Long bone 
Explanation: The anatomic location of the fracture can be described as diaphyseal (involving the central shaft of a long bone), metaphyseal (involving the ends of the shaft of a long bone), physeal (involving the growth plate), or epiphyseal (involving the ends of a long bone).