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: Surgery
[{'content': 'After 30% loss of blood volume in road traffic accident. What next min is to be given - \nSelect and explain. \nA. IV fluid only, B. IV fluid with cardiac stimulant, C. Dopamine, D. Vasopressor drug', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]