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
[{'content': 'A boy of chronologic age 9 years is 125 cm in height. Mean height for the age is 133.71 cm with a standard deviation of 5.49 cm. The skeletal age is assessed as 8 years. The boy may be regarded as. \nSelect and explain. \nA. Somewhat physically retarded with the potential to catch up, B. Severely physically retarded with little potential to catch up, C. At the right level, D. Destined to be a short-statured individual', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]