Correct Answer: DThe most appropriate way to address the variability of demand in a multitiered distribution network is to increase demand visibility with all partners. This means sharing demand information and forecasts across the network, which improves coordination, planning, and responsiveness. With better visibility, all partners can adjust their actions quickly to changes in demand patterns, leading to more accurate inventory management and customer service. Increasing manufacturing throughput or safety stock targets might address symptoms but does not tackle the root cause of variability in demand.