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': 'Heparin therapy is best monitored by which of the following given test? \nSelect and explain. \nA. Prothombin time, B. Bleeding time, C. Activated Partial Thrombo plastin Time, D. International Normalised Ration', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]