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: Dental
A reliable indicator of pubertal growth spurt on hand
wrist films is sought as: 
Select and explain. 
A. Ossification of adductor sessamoid, B. Appearance of hook of hamate, C. Ossification of all the carpal bones, D. Ossification of pisiform
A: Ossification of adductor sessamoid
Answer: A: Ossification of adductor sessamoid 
Explanation: None