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: Physiology
[{'content': 'Which of the following would you expect to find in a patient whose diet has been low in cakcium for 8 weeks? \nSelect and explain. \nA. Increased phosphate levels, B. Raised calcitonin levels, C. Increased parathormone secretion, D. Activation of 24-25 dihydrocholecalciferol', 'role': 'user'}, {'content': 'Answer: C \nExplanation: C i.e. Increased Parathormone secretion', 'role': 'assistant'}]