The correct separation method for blood and plasma is filtration — but more specifically, in real medical practice, it’s done through a process called centrifugation (not listed in your options).However, among the choices you gave:Decantation, Evaporation, Filtration, SievingFiltration is the best answer.Why? • Filtration involves separating solid particles from a liquid using a filter. • While blood and plasma are both liquids, plasma is the liquid part of the blood, and the solid components like red blood cells and platelets can be separated using a very fine filter or better — a centrifuge, which works by spinning the blood fast to separate by density.Summary:Answer: Filtration(But in real life, it’s done through centrifugation, which separates the blood components based on density.)