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
The syndrome which consists of cleft palate, micrognathia
and glossoptosis is known as 
Select and explain. 
A. Marfan's syndrome, B. Crouzon's syndrome, C. Paget's disease, D. Pierre Robin syndrome
D: Pierre Robin syndrome
Answer: D: Pierre Robin syndrome 
Explanation: None