Concept:Translocation is the transport of dissolved substances, including minerals and organic compounds, within a plant.Explanation:Osmosis and diffusion mainly involve water or simple molecules moving along concentration gradients.Transpiration is the loss of water vapour from plant leaves.Translocation, however, specifically moves minerals and chemical compounds through vascular tissues such as the phloem and xylem.Therefore, the correct answer is translocation.Answer:B. translocation