It costs $10 to make a single unit using regular production and $15 to make a single unit using overtime production. Total overtime production is limited to 1000 units for the five-month period. The manufacturing plant has a regular production capacity of 250 units per month and 225 units in inventory at the start of the planning period. There is a $5 per unit charge for holding inventory at the end of each month and a limit of 600 units ending inventory for any period. What is the minimum cost production plan if the forecast must be met with a zero ending inventory each month? Month Forecast January 250 February 200 March 300 April 400 May 500 O A. $16,500 B. $15,700 OC. $15,850 O D. $16,150 E. $16,800 A firm practices a chase strategy. Production last quarter was 1000. Demand over the next four quarters is estimated to be 900, 700, 900, and 800. Hiring cost is $8 per unit, and layoff cost is $20 per unit. Over the next year, what will be the sum of hiring and layoff costs? A. $7500 B. $7200 C. $6400 O D. $9600 E. $8000