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': 'Defficiency of which element can lead to syndrome of growth failure, anaemia and hypogonadism – \nSelect and explain. \nA. Calcium, B. Copper, C. Zinc, D. Magnesium', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]