This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Endocrinology, Subject name: Medicine
[{'content': 'Alkaline phosphatase is found in all organs, except- \nSelect and explain. \nA. Bone, B. Hea, C. Placenta, D. Lungs', 'role': 'user'}, {'content': "Answer: B \nExplanation: Alkaline phosphate is an enzyme orginating mainly in Bone, liver, placenta, kidney and intestines Alkaline phosphatase is used as an index of liver and bone disease Ref: harrison's internal medicine 20e", 'role': 'assistant'}]