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': 'The left side of the heart is responsible for pumping \nSelect and explain. \nA. Oxygenated blood to the body, B. Oxygenated blood to the lungs, C. Deoxygenated blood to the body, D. Deoxygenated blood to the lungs', 'role': 'user'}, {'content': 'Answer: A \nExplanation: The left side of the heart is slightly more muscular to have\xa0the\xa0power and strength to pump blood up through the aorta and round to the rest of the body', 'role': 'assistant'}]