Charm Enterprises' production budget shows the following units to be produced for the coming three months: A finished unit requires four ounces of a key direct material. The March 31 Raw Materials Inventory has 5,432 ounces (oz.) of the material. Each month's ending Raw Materials Inventory should be 35% of the following month's production needs. Materials purchases in May should be: Multiple Choice 20,784 oz. 10,088 oz 15,352 oz