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': 'Late onset hemorrhagic disease of newborn is characterized by all of the following features except – \nSelect and explain. \nA. Usually occurs in cow–milk fed babies, B. Onset occurs at 4–12 week of age, C. Intracranial hemorrhage can occur, D. Intramuscular vitamin K prophylaxis at birth has a protective role', 'role': 'user'}, {'content': 'Answer: A \nExplanation: "Haemorrhagic disease of new born is more common in breast fed infants because breast milk is a poor source of\xa0vitamin K"\nWhat is haemorrhagic disease of new born\n\nIt is a haemorrhagic disease of new born characterized by bleeding from various sites due to a transient deficiency of vitamin K dependent factors (II, VII, IX & X). .\nBreast milk is a poor source of vitamin K and haemorrhagic manifestation are more common in breast fed infants.\n\nClassification. etiological presentation. prevention and incidence of various forms of haemorrhagic diseases of the\xa0 new born', 'role': 'assistant'}]