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': 'Which of the following statements regarding the flow of lymph from lower limb is truea) ↑sed with change from supine to standing positionb) ↓sed in increased capillary permeabilityc) ↓sed in deep vein valve incompetenced) ↑ed by massage of foot \nSelect and explain. \nA. b, B. ad, C. ac, D. ab', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Massage gives compression to lymphatics, so that the return is increased. Similarly, when there is a change of position from supine to standing, the fluid pressure increases in the legs. This also aids in lymph flow.', 'role': 'assistant'}]