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
Transformation into osteosarcoma is seen with 
Select and explain. 
A. Pagets disease and polyostotic fibrous dysplasia, B. Pagets disease and osteopetrosis, C. Cherubism and polyostotic fibrous dyspLasia, D. Cherubism and polyostotic fibrous dyspLasia
A: Pagets disease and polyostotic fibrous dysplasia
Answer: A: Pagets disease and polyostotic fibrous dysplasia 
Explanation: None