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: Pathology
Which of the following diseases of	the bone characteristically exhibits (in contrast to the other three conditions) a single lesion in a single bone? 
Select and explain. 
A. Central giant cell granuloma, B. Osteopetrosis, C. Paget's disease of the bone, D. Polyostotic fibrous dysplasia
A: Central giant cell granuloma
Answer: A: Central giant cell granuloma 
Explanation: None