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
The radiological changes in Rickets are: 
Select and explain. 
A. Narrowing or absence of the normal zone of provisional calcification, B. Fracture of the bone, C. Epiphysis smaller than normal and have characteristic thin pencil line coex, D. Bowing of the bone
A: Narrowing or absence of the normal zone of provisional calcification
Answer: A: Narrowing or absence of the normal zone of provisional calcification 
Explanation: Ans. Narrowing or absence of the normal zone of provisional calcification