Which of these is NOT an assumption that is made with regard to the basic EOQ inventory model? A. Annual demand requirements are known B. Variation in both demand and lead time exists, and is known C. No quantity discounts are involved D. Each order is received as a single delivery

bradford, inc., expects to sell 9,000 ceramic vases for $21 each. direct materials costs are $3, direct manufacturing labor is $12, and manufacturing overhead is $3 per vase. the following inventory levels apply to 2019: beginning inventory ending inventory direct materials 3,000 units 3,000 units work-in-process inventory 0 units 0 units finished goods inventory 300 units 500 units what are the 2019 budgeted production costs for direct materials, direct manufacturing labor, and manufacturing overhead, respectively?