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
Amelogenesis imperfecta is also known as 
Select and explain. 
A. Hereditary enamel dysplasia, B. Hereditary brown enamel, C. Hereditary opalescent teeth, D. All of the above
D: All of the above
Answer: D: All of the above 
Explanation: None