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: Pediatrics
[{'content': 'A child is below the third percentile for height. His growth velocity is normal, but chronologic age is more than skeletal age. The most likely diagnosis is – \nSelect and explain. \nA. Constitutional delay in growth, B. Genetic short stature, C. Primordial dwarfism, D. Hypopituitarism', 'role': 'user'}, {'content': 'Answer: A \nExplanation: This child has → i) Short stature (height is less than 3rd percentile) ii) Normal growth velocity, iii) Chronological age > skeletal age\n\nAll these are features of Consititutional delay in growth.', 'role': 'assistant'}]