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: Pathology
[{'content': 'Intestional absorption of Calcium is decreased by \nSelect and explain. \nA. Proteins, B. Lactose, C. Phytic Acid, D. Acidity', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]