<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A peripheral artery is found to have 50 stenosis. Therefore, compared to a normal artery with no stenosis, by what factor has the flow of blood been decreased?? A: 2, B: 4, C: 8, D: 16, E: 32,  <response>: This is a question about peripheral artery stenosis and its effect on blood flow. When an artery is stenotic or narrowed, the flow of blood through that artery decreases. The degree of stenosis is directly related to the decrease in flow. In this question, there is 50 stenosis. This means the artery diameter has been decreased by 50. According to Poiseuilles law, flow is proportional to the fourth power of the radius. So if the radius is decreased by 50, the flow will be decreased by a factor related to 0.54 116 0.0625.So compared to a normal artery, the flow has decreased by a factor of 10.0625 16.D: 16 