This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Cardiovascular system, Subject name: Physiology
[{'content': 'Volume receptors are \nSelect and explain. \nA. Affected by total cardiovascular output, B. Stimulated by atrial systole and diastole, C. Stimulated by left ventricular contraction, D. Stimulated by aoic pressure', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Volume receptors are low-pressure receptors located in great veins, right and left atria, and pulmonary vessels.They are also called volume receptorsDue to the peculiarity of location of these receptors, they are affected by total cardiovascular output.Ref: Medical Physiology Indu Khurana 2015 edition page No:548', 'role': 'assistant'}]