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: Surgery
In a 5-year-old child with mandibular fracture, on a follow up recall after 2 months, what should be done to check the bone healing: 
Select and explain. 
A. OPG at every 2 month till one year, B. NCCT, C. Single contrast CT, D. Clinical examination adequate
D: Clinical examination adequate
Answer: D: Clinical examination adequate 
Explanation: Clinically stable and symmetric bone, with a normal occlusion and a pain free chewing is indication enough for a completed bone healing in a child.