Anyone could hlep plz

Which of the following situation would present a challenge for a just-in-time (JIT) investment system? Increase in the number of suppliers Long-term relationships with suppliers Vendor managed inventory Sudden increase in demand The critical path in a PERT chart represents the.sequence of operations that require the least amount of technical support areas of operations that have abundant and Ordering costs per unit and holding costs per unit as you purchase more material. decrease; decrease; increase increase; decrease increase; increase What are two internal costs of poor Quality? What is an external cost of poor Quality