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': "The relation between current, electromotive forces and resistance in a circuit by Ohm's law is stated as \nSelect and explain. \nA. i = E/R, B. i = R/E, C. i = RE, D. All of the above", 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ohm’s law\nFor electric current flow\ni = E/R\nFor blood flow\nQ= ΔP/R', 'role': 'assistant'}]