Answer:
C) 27,600
Step-by-step explanation:
Robin Co.'s initial inventory = 18,000 units
they plan to sell a total of 7,000 units + 8,000 units + 9,000 units = 24,000 units
they also plan to have 21,600 units as final inventory
therefore Robin Co. should produce = 24,000 units + 21,600 units - 18,000 units = 27,600 units