Replenishment Planning (D) in Oracle Fusion Cloud SCM ensures inventory levels are maintained efficiently by predicting demand and adjusting supply plans to replenish stock proactively. It uses forecasts and safety stock rules-e.g., ordering 300 units when stock falls to 50 and demand is expected to rise-to prevent shortages or excess inventory. Option A (Supplier Qualification) focuses on supplier evaluation, not inventory maintenance. Option B (Cost Accounting) tracks financials, not stock levels. Option C (Manufacturing Execution) manages production, not replenishment. Replenishment Planning optimizes inventory turnover, reduces carrying costs, and ensures product availability, making it a proactive inventory management tool.