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
Time sector scanning of neonates is preferred because of the following reason most practical reason: 
Select and explain. 
A. Open fontanelles, B. Inexpensive, C. Children more co-operative, D. Better resolution
A: Open fontanelles
Answer: A: Open fontanelles 
Explanation: Ans. Open fontanelles