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 is not hereditary: 
Select and explain. 
A. Amelogenesis imperfecta, B. Cleidocranial dysostosis, C. Regional odontodysplasia, D. Dentinogenesis imperfecta
C: Regional odontodysplasia
Answer: C: Regional odontodysplasia 
Explanation: The etiology of odontodysplasia may be due to latent virus residing in odontogenic eipthelium or due to local vascular defect. Recently it has been suggested that odontodysplasia may represent in somatic mutation