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: Anatomy
Lumbar hemivertebra results due to the abnormal development of - 
Select and explain. 
A. Dorsal sclerotome, B. Intermediate cell mass, C. Notochord, D. Ventral sclerotome
D: Ventral sclerotome
Answer: D: Ventral sclerotome 
Explanation: None