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: Orthopaedics
Enchondroma commonly arises from- 
Select and explain. 
A. Ribs, B. Phalanges, C. Vertebra, D. Tibia
B: Phalanges
Answer: B: Phalanges 
Explanation: The phalanges are digital bones in the hands and feet of most vertebrates.
In primates, the thumbs and big toes have two phalanges while the other digits have three phalanges.
The phalanges are classed as long bones.