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
Periosteal new bone formation is seen in: 
Select and explain. 
A. Caffey’s disease, B. Hypervitaminosis A, C. Syphilis, D. All of the above
D: All of the above
Answer: D: All of the above 
Explanation: Periosteal new bone formation is seen in:

Caffey's disease or infantile cortical hyperostosis
Hypervitaminosis A
Syphilis, leukemia, Ewing's sarcoma, etc.
Garre's osteomyelitis
Acute osteomyelitis is most frequently caused by which of the following microorganisms (Al 02, 03) (Staphylococcus aureus and Staph Albus)