Real-time Supplier Collaboration (C) in Oracle Fusion Cloud SCM ensures supply planning reflects the latest supplier information by integrating live data-e.g., lead times, inventory availability-via tools like the Supplier Portal. If a supplier updates a lead time from 5 to 7 days, planning adjusts instantly. Option A (increasing reorder points) is a static fix, not real-time. Option B (manual verification) contradicts automation goals. Option D (separate models) fragments planning, reducing accuracy. For example, real-time updates might prevent a stockout by rescheduling a delayed shipment, enhancing agility and precision in supply plans.