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 most common cause of Neonatal Hypothyroidism is \nSelect and explain. \nA. Throid dysgenesis, B. Transplacental maternal thyroid antibodies, C. Inherited genetic disorders, D. Decreased thyroglubin', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Iodine deficiency is the commonest cause of congenital hypothyroidism in certain parts of India, while thyroid dysgenesis is the most common aetiology in non-endemic areas (75% of all cases).', 'role': 'assistant'}]