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: Radiology
"Champagne Glass" pelvis is seen in: 
Select and explain. 
A. Achondroplasia, B. Cretinism, C. Down's syndrome, D. Congenital dislocation of hip
A: Achondroplasia
Answer: A: Achondroplasia 
Explanation: Ans. Achondroplasia