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: Radiology
A patient requires tooth extractions from an area that has been subjected to radiation therapy. Which of the following represents the greatest danger to this patient: 
Select and explain. 
A. Alveolar osteitis, B. Osteoradionecrosis, C. Prolonged healing, D. Fracture of the mandible
B: Osteoradionecrosis
Answer: B: Osteoradionecrosis 
Explanation: None