This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Skeletal system, Subject name: Radiology
Champagne glass pelvis is seen in - 
Select and explain. 
A. CDH, B. Down's syndrome, C. Cretinism, D. Achondroplasia
D: Achondroplasia
Answer: D: Achondroplasia 
Explanation: Radiological features of Achondroplasia : Macrocephaly. Frontal bossing J shaped sella Caudal narrowing of interpedicular distance Champagne glass pelvis Trident hand