XYZ Company plans to sell 11,000 units of its product in January and another 10,000 in February. The beginning balance of finished goods is 1,100 on January 1 and XYZ Company wants an ending balance on January 31 of 1,000 units. How many units of its product should XYZ Company produce during January to meet its goals?
a. 9,900
b. 10,900
c. 11,000
d. 12,000